Chelsea already knew the odds were slim. No team that has been clear by at least 10 points at the top of the Premier League after 21 matches has ever failed to lift the trophy.

The Blues travelled to leaders Manchester City on Saturday exactly 10 adrift and desperate to improve on their showing against Pep Guardiola's men from earlier in the season.

But a familiar foe once again brought their downfall as City sealed a 1-0 win that further increases their lead at the summit and probably has them over the horizon in the title race – at least as far as Chelsea are concerned.

Thomas Tuchel spoke with great clarity and assuredness as he addressed the media on Friday, accepting Chelsea were far too negative in their 1-0 defeat to City at Stamford Bridge earlier in the season.

We say "defeat", but in reality it was as close to a 1-0 battering as they come. City tallied three times as many shots as Chelsea (15 to five), and it was a similar story in terms of touches in the opposition's box (34 to 11).

But there was little sign of a major improvement here. Tuchel flailed and flapped like a headless chicken on the touchline, his instructions ultimately powerless against a City side that smothered Chelsea with a high press that just seemed to suffocate them more as the game went on.

Initially, as much as anything, Chelsea just looked confused. Their bravery in playing out from the back was to be commended in some instances, but that mentality seemed to be completely at odds with almost everything else they did.

They would get into the midfield but then launch long balls out wide or to Christian Pulisic in the hole rather than for Romelu Lukaku to run onto. The moves would go nowhere.

There was no period of sustained pressure from Chelsea at all in the first half – in fact, they got to the interval without registering a single shot, the first time that's happened in a league game under Tuchel.

Lukaku, bar one early instance where he rolled John Stones before mucking up the final pass, cut a frustrated figure up top. While Chelsea's play in the build-up largely seemed unlikely to get the best out of him, his team-mates might have expected more attempts to run in behind the City defence.

The second half was just a few minutes old when such a situation did present itself, with Lukaku able to do what he's best at: running on to throughballs rather than acting as a target man.

Ederson produced a fine save to block Lukaku's effort, but it was the clearest evidence yet of how Chelsea were likely to hurt City – not that it was necessarily a sign of things to come for the visitors.

If anything, it served as a jolt for City, a reminder that, as good as they are, they weren't going to be able to sleepwalk to a win here.

City allowed Chelsea more of the ball, but Guardiola's men upped the intensity significantly with their pressing – the Blues started to find passing through the midfield rather trickier.

Eight of the nine times City won possession in the final third (Chelsea only did so once in the whole game) came in the second half, which was not only evidence of how they were able to impressively dig deep physically, but also highlighted how a team can take the game to an opponent even without the ball.

Of course, City relied on a moment of pure inspiration, which was somewhat predictably delivered by Kevin De Bruyne, who strode away from N'Golo Kante and saw his gorgeous curling effort find the bottom-right corner from 25 yards.

It was his fifth Premier League goal against Chelsea, making his old club his favourite opposition in that regard, and a figure bettered by no other former Blue in the competition.

In the context of the match, it also highlighted the differing fortunes of players with comparable pasts: both De Bruyne and Lukaku joined Chelsea as youngsters and ultimately failed to make an impression.

The midfielder now regularly lights up the Premier League, but his international colleague is back at Stamford Bridge and struggling again, albeit for different reasons.

But the fact of the matter is, Lukaku was brought back to turn Chelsea into title contenders – that now looks impossible thanks to another familiar face.

Novak Djokovic has won the last three Australian Open titles and lifted the trophy nine times in all, which means he arrived in Melbourne as a hot favourite to triumph again.

Yet even before the chaos of the last 10 days, this looked a tough Australian Open for Djokovic, given the likes of Daniil Medvedev and Alexander Zverev have recently taken his scalp in major hard-court matches.

There was no doubt he was a worthy favourite, but Djokovic's dominance of the first half of last season was followed by a series of painful defeats, weakening his standing at the top of the game.

When the men's singles draw was made on Thursday, only two former champions featured: Djokovic and Rafael Nadal, the 2009 winner.

Here, Stats Perform assesses the contenders to follow Djokovic onto the Melbourne Park throne.

NEXT NUMBER ONE? DANIIL MEDVEDEV

Last year's runner-up, given a sound pasting by Djokovic in a final that came nowhere close to matching expectations, has come a long way since that crushing blow. Russian Medvedev was the only man to beat Djokovic in a grand slam last year, doing so at the final hurdle of the final major, without dropping a set in the US Open title match. That denied Djokovic a calendar year sweep of the majors, which would have been the first time the feat had been achieved by a man since Rod Laver's 1969 complete set.

He also took the first set off Djokovic in the Paris Masters final in November, only to lose the match. What is clear is that Medvedev is amassing experiences against Djokovic: some good and some bad, but all surely massively helpful. He lost in their first three encounters but has won four of the seven since.

Progress like this is what repeat champions are made of. Medvedev has a 9-9 win-loss record when dropping the first set of matches over the past year, which shows he is not easily beaten. Only Djokovic (14-6) has a better record in that respect.

Medvedev has a 54-9 record on hardcourts over the past 12 months, has gone mightily close to hitting number one in the rankings, and might see a lot of that top step in the months and years to come. On the 52-week rolling list, he holds a 16-8 win-loss record against top-10 opponents, which is second only to Djokovic (22-5).

Should Medvedev pull off a second consecutive grand slam win, it would make him just the third Russian man to win two or more grand slam singles titles, after Yevgeny Kafelnikov (French Open 1996 and Australian Open 1999) and Marat Safin (US Open 2000 and Australian Open 2005).

The last player other than Federer, Nadal and Djokovic to secure back-to-back majors was Andre Agassi (US Open 1999 and Australian Open 2000).

OVERDUE SLAM INCOMING? ALEXANDER ZVEREV

The Olympic champion and ATP Finals winner is just lacking a grand slam title to confirm to the wider sporting world his status as one of the rising generation's preeminent performers. Zverev beat Djokovic in semi-finals en route to both of those big 2021 titles, and although he also lost three times to the 20-time major winner over the season, he took four sets off the man from Belgrade in those defeats.

Zverev is improving season on season, and if he avoids injuries or other tribulations in 2022 then he surely stands a strong chance of picking up that first slam before the year is out. He won six titles in all in 2021, more than any other singles player on the ATP Tour, and holds a 43-10 win-loss record on hardcourts on the 52-week rolling list.

When the draw was made, he and Djokovic were set on another semi-final collision course, and that prospect looked tantalising. Until recently so far apart, the gap has closed considerably, Zverev tallying victories that will have surely troubled the world number one.

NOT READY TO BE YESTERDAY'S MAN: RAFAEL NADAL

Because why the heck not? Nadal, at the age of 35, returned from a long foot injury lay-off with a title at the Melbourne Summer Set tournament this month, and if his record at the Australian Open is deemed unspectacular by some, the Spaniard himself takes great pride in his achievements.

Recently, in a Melbourne news conference, he was asked why he had not reached the semi-finals of the Australian Open since his title year, and Nadal swiftly put his questioner right.

"I am very sorry to tell you – I don't want to – but I have been in the final of 2012, '14, '17, '19," he said. "I got injured a couple of times here in my tennis career, so of course it's been a great tournament for me, and of course I had a lot of challenges in terms of injuries in this event. Sorry to correct you."

Polite as ever, but pointed. Nadal knows he has been successful in Australia and would surely not have returned this year if he felt there was no chance of another run to the final. He rightly takes issue with those who forget his feats. Remember, he, like Djokovic and Federer, sits on 20 grand slams.

Nadal reached the quarter-finals last year and lost from two sets up against Stefanos Tsitsipas, so he will want to banish that memory. There is little evidence of hard-court form beyond his win in a mediocre field last week in Melbourne, but he is Rafael Nadal and he wins tennis tournaments. At least one every year since 2004. A 6-8 record against rival top-10 players over the past 52 weeks is no great shakes, but you count out Nadal at your peril.

NEXTGEN OR NEXT NEW CHAMP? JANNIK SINNER

Tennis is such a generation game just now. The Big Three (Big Four, if you include Andy Murray) are in the twilight years of their careers, coming under long-awaited threat from the mid-twenties likes of Medvedev, Zverev, Dominic Thiem (absent from Australia), Tsitsipas and Matteo Berrettini.

Sinner is to the forefront of the pack of the next big group coming through (see also: Carlos Alcaraz, Lorenzo Musetti). At 20, the Italian is entering a big year in the context of his career. By the time Djokovic turned 20, he was sixth in the world, Federer was 14th on the day he left his teenage years behind, and Nadal was second. Progress comes at different rates.

Sinner was 15th in the rankings on his last birthday, in August, but has since dipped his toes into the top 10 and currently stands 11th. He won four ATP Tour titles in 2021, finished the year with a 49-22 record, and can reasonably be expected to kick on. The Italian has yet to majorly show up at the grand slams, with a Roland Garros quarter-final in 2020 his best run yet.

Expect that to change soon enough. Sinner is only 6-9 against top-10 players on the 52-week list, but he warmed up for the challenge that lies ahead in Melbourne with three straight-sets singles victories at the ATP Cup. His 42-14 record on hardcourts over the last year suggests the Australian Open should suit him as well as any slam.

Ole Gunnar Solskjaer came in for just a smattering of criticism during his final weeks in charge of Manchester United. The fact that his team had apparently forgotten how to play professional football matches was quite the talking point.

But few things put quite so many noses out of joint as his comments about Marcus Rashford some weeks before his departure.

In October, as Rashford prepared to make his first appearance since shoulder surgery two months earlier, Solskjaer suggested the forward needed to "maybe prioritise his football" after 18 months of dominating headlines for philanthropy rather than finishing.

Later, Solskjaer was forced to clarify his remarks as some felt he was criticising Rashford for tallying up free school meals instead of goals. That felt unfair given Solskjaer was generally speaking in glowing terms, but if there was a hint of brutal honesty there, it's only grown more pertinent.

Rashford is an estimable young man, one who has forced a government into two U-turns over providing for disadvantaged children, who was awarded an MBE for his charity work at the age of just 24. He is also an elite footballer who has produced far too many uninspiring performances in the past year, whose form only seems to be getting worse, who has only played a full game on two occasions all season and who caused astonishment in the Stretford End when he gave up chasing a loose ball in the penalty area in the FA Cup win over Aston Villa.

For United interim manager Ralf Rangnick, Rashford is potentially one of his greatest assets. Right now, his form – and his mood – represent one of his biggest problems.

Rash-flow problems

Rashford started 2021 in promising fashion, with six goals and five assists in 20 starts in all competitions beginning with one of each in an FA Cup win over Liverpool at Old Trafford. Soon came a seven-game run in which United went into pragmatic mode, keeping clean sheets in all but one match but scoring only four times. Rashford then netted in consecutive games and looked to be firing again.

He would only score another four goals for United all year.

Some important context is needed. Rashford went through some personal upheaval last year that would have been hard simply to shrug off. He also spent much of 2021 playing through injury: ankle and shoulder problems were a big hindrance when he was on the pitch, and the latter required an operation following Euro 2020, a tournament to which even he admitted he probably shouldn't have gone. He did go, of course: he played 83 minutes, all as a substitute, failed to score and missed a penalty in the final shoot-out. He did not then appear in 2021-22 until October 16; he marked his return with a goal, but it came in a 4-2 defeat to Leicester City that spelled the beginning of the end for his manager. This was hardly the smoothest of years.

Part of the reason Rashford played through pain for so long was he embraced being Solskjaer's Mr Reliable. He played 135 games under the Norwegian, more than any other United player. In that time, he also scored the most goals – 55, 11 more than Bruno Fernandes – and provided 22 assists, a tally behind just Fernandes (33) and Paul Pogba (23). In the nearly three years Solskjaer was in charge, both as caretaker and permanent boss, only seven Premier League players scored more goals than Rashford in all competitions.

Like many managers, Solskjaer had his favourites. It gave his team a consistent structure and meant that, when things were going well, good habits and good spirits could permeate the side. But when it started to go wrong, when players kept their places even as their form took a nosedive, the scrutiny and pressure to improve grew exponentially. This took its toll in real time: Harry Maguire went from England rock to a running joke; Fernandes looked more forlorn with every flail of his arms. And Rashford, as former United star Rio Ferdinand pointed out, has looked like he has the weight of the world on his shoulders, running himself further into the ground with every insipid display.

From April 9 until the end of 2021, Rashford scored four goals in 23 games in all competitions. Among Premier League players, he had a worse strike rate than Burnley's Jay Rodriguez (five goals in 23 games) and Leicester defender Jonny Evans (four in 21). Former Red Devil Danny Welbeck scored the same number in just 14 Brighton and Hove Albion appearances.

Over the same time frame, Rashford managed three assists, as many as Pierre-Emile Hojbjerg and Joshua King, and one less than Conor Gallagher. That left him on seven direct goal involvements, while midfielders John McGinn and Declan Rice managed eight. Rashford created 19 goalscoring chances, marginally more than Leicester's close-season signing Patson Daka (18) and Chelsea centre-back Antonio Rudiger (17). Rashford (45) had only two more shots than Rudiger over that time, with just 14 on target, the same number as Liverpool right-back Trent Alexander-Arnold.

On average, Rashford was involved in 0.41 goals per 90 minutes; among United players with at least two goals in that time, only three come off worse. One is July signing Jadon Sancho, a 21-year-old trying to adapt to a new club, new systems and new expectations. The others are Fred and Scott McTominay.

Running for Ralf

Just after his appointment, Rashford spoke positively about Rangnick's attention to detail.

"He's done a good job because prior to him coming in he spent a lot of time analysing the team and analysing individuals and he knows what our strengths are," he said to Sky Sports.

"We've got a lot more together, we've obviously been working on pressing and we'll still improve on that, but the main thing is just doing everything together as a team, whether we are attacking or defending."

For his part, Rangnick doesn't appear outwardly worried about Rashford's form, even though he was at a loss to explain it. Speaking after the win over Villa, he said: "Of course it would be good, for example, for Marcus if he could score a goal but as long as he's trying, as long as he's training well, I don't see that much of a problem."

"Trying" doesn't seem to be an issue. Rangnick, we know, is a stickler for hard running and high pressing, and only Cristiano Ronaldo (93) has made more sprints than Rashford (85) in the Premier League since the German was appointed in late November (including the 3-2 win over Arsenal, when Michael Carrick was still in caretaker charge of the side). Similarly, only McTominay (82) has contested more duels than Rashford (53), and nobody has attempted more dribbles (22). 

Going back to the start of last year, Rashford has recorded 500 sprints in the Premier League, the fourth-most among United players at a rate of about one every four and a half minutes. The only United attackers to play at least 10 times with better rates are Sancho (4.35) and Dan James (3.11), now at Leeds United. Ronaldo, if you're interested – and let's face it, you are – averages roughly one sprint every five and three-quarter minutes, which is more frequent than Fernandes, who is closer to one every six minutes.

On and off the pitch, you can't fault Rashford's endeavour. The story of the past year hasn't been one of attitude, but aptitude. Rashford runs, but not always at the right moments; he dribbles, but in the wrong areas; he finds an opening, and he makes the wrong choice.

Rash converters

You don't need to look too closely to see that Rashford's output is below par this season, but the deeper you dig, the starker that reality becomes.

His career average for minutes per goal is 207; this season, it's 282. His dribble success rate is 38.6, down from 42.5 on average. His shooting accuracy is 53.3, down from 57 on average. His crossing accuracy has more than halved from 15.8 to 7.1.

Across all competitions since January 1 last year, Rashford has attempted 207 take-ons, way more than any other United player (Mason Greenwood is next on 170), 178 of which have been in the opposition's half. His 21 drives into the box are at least 10 more than anyone else at United, he is joint-top for take-ons with a shot (seven, with Greenwood) and top for take-ons with a chance created (four). He is also United's attacking player with the most progressive carries in which he has moved with the ball 10 metres or more towards the opponents' goal (158). However much the Villa incident suggested otherwise, there's no obvious lack of effort.

Yet there is a verifiable, worrying lack of efficacy in these attempts to make things happen. Looking at the Premier League alone, only five players since last January 1 have attempted more take-ons in the opposition half than Rashford (128); the man top of that list, Adama Traore (184), is the only player with more drives into the box (26 to Rashford's 16). But the Wolves winger, so often derided for end product, has 11 take-ons with a shot and 14 take-ons with a chance created, 14 more than Rashford when you combine the two.

Over the same period, Mohamed Salah (41) had the most carries to end in a shot, with Greenwood second alongside Harry Kane with 38. There are 25 players who had more than Rashford (18). When it comes to a carry ending in a chance created, Traore is top of the table with 36; Rashford, with 10, is below 49 other players.

It reflects a recurring concern: that when Rashford runs at defenders with the ball, it's less a calculated attacking move and more one of hope, or desperation. It's a symptom of both Solskjaer's system, which relied on the spontaneity of the individual, and of Rashford's own conviction that any problem is just waiting for him to solve it. He tries to play like a man who has earned the famous United number 10, a superstar performer in a squad bursting with talent. In reality, the shirt looks heavier with every passing minute.

In some ways, Rashford is emblematic of United's wider problems. He desperately needs not only a morale boost, but a tactical one: he needs hardline instructions, and to play in a system in which he feels confident as well as competent. Ironically, he is one of the few for whom the Solskjaer-Rangnick transition should be simplest since both Ole's 4-2-3-1 and Ralf's 4-2-2-2 offer the kind of wide left attacking role Rashford likes best.

Whatever the root cause of his malaise, he will be desperate for things to change, and change quickly. Perhaps they will. Perhaps he'll light up Villa Park on Saturday, kick-start his return to form and United's road to redemption.

After all, U-turns are a Marcus Rashford speciality.

Manchester City and Chelsea were both in the market for a striker ahead of the 2021-22 season.

Although Chelsea sealed Romelu Lukaku's return – for a club-record fee reported to be £97.5million – City were unable to break Tottenham's resolve and sign Harry Kane.

For a brief time towards the end of August, it seemed Cristiano Ronaldo would be heading to the Etihad Stadium. Yet City again came away empty-handed – Ronaldo, like Lukaku, returning to a former club as he joined rivals Manchester United.

Indeed, City were once linked with Lukaku, with the forward himself claiming he had turned down an approach in 2020. But Pep Guardiola's team have, so far, cast aside any doubts that a lack of an out-and-out striker would cost them dearly.

City looked set to be in a three-way title race earlier in the season, alongside Chelsea and Liverpool. Heading into their second top-flight match of 2022, they are 10 points clear of the Blues and 11 clear of the Reds.

City turned in a statement performance in a 1-0 win at Stamford Bridge in September and, while rumours swirl of impending approaches for Erling Haaland or Dusan Vlahovic, two of Europe's brightest striking prospects, it will be Guardiola's 4-3-3, false nine system that Thomas Tuchel must look to counter on Saturday.

Using Opta data, Stats Perform assesses how the respective attacks have stacked up this season.

Rom's return

It would be fair to say Lukaku's return to Stamford Bridge has not yet matched what was expected. Having led Inter to their first Serie A title in 11 years, Lukaku re-signed for Chelsea to much fanfare and, undoubtedly, as one of the most fearsome finishers in European football.

Lukaku's second Chelsea debut could hardly have gone better as he opened the scoring against Arsenal after just 15 minutes, putting his strength, pace and positioning prowess on full display.

Yet he has so far failed to hit his stride. His five league goals from 13 appearances ranks him behind Mason Mount and Jorginho (both six) in Chelsea's squad, albeit the latter has netted all of his from the penalty spot.

Lukaku's goal return has come from a total of 22 shots, the fifth-most in Chelsea's squad, at an average of 2.3 per 90 minutes played. However, his rate of scoring every 166 minutes in the league puts him top of Chelsea's squad in that metric.

But that has been another issue with his comeback. Lukaku has featured for just 828 minutes in the league, starting only eight times, with 12 team-mates accumulating more game time.

An injury sustained in a Champions League win over Malmo in October kept him out of action for several weeks and he subsequently contracted COVID-19.

Then, late in December after he scored in successive matches against Aston Villa and Brighton and Hove Albion, Sky Italia released an interview, conducted several weeks previously, in which Lukaku questioned Tuchel's tactics and suggested he could leave Chelsea.

Tuchel reacted strongly, dropping the forward for a pivotal clash with Liverpool on January 2, which finished 2-2. Lukaku apologised and returned to Chelsea's side for the first leg of their EFL Cup semi-final against Tottenham.

One of Lukaku's complaints was about how Tuchel has used him so far. 

Last season, playing typically in a 3-5-2 system at Inter, Lukaku averaged three shots, 1.5 attempts on target, 7.3 touches in the opposition box and 1.6 chances created per 90 minutes, across 36 Serie A appearances. But those figures have so far dropped to 2.4 shots, 0.9 attempts on target, 6.4 touches in the opponent's box and 1.5 chances created this term, with the forward deployed as a target man to combine with Mason Mount, Kai Havertz, Christian Pulisic and the rest of Chelsea's attack.

It is a role that does not seem to suit Lukaku best, though Tuchel has made it clear who the boss is.

False nines and a flying full-back

Chelsea and City have played 21 league games this season, but Guardiola's team have netted six goals more. They average one every 36 minutes, compared to Chelsea's 43, and have out-shot the Blues 391 to 320.

This is all without a recognised number nine but, as proved by their charge to a third league title in four seasons in 2020-21, City have cracked the code of having any player but a centre-forward lead their line.

Whether it is Phil Foden, Kevin De Bruyne, Raheem Sterling, Jack Grealish, Ilkay Gundogan, the magnificent Bernardo Silva or, occasionally, the man who wears nine, Gabriel Jesus, City have a wealth of stellar options to slot into that role.

Sterling and Silva, who has been in sensational form all season, lead the way with seven goals each. It is a testament to Guardiola's man management that the duo, who might have left the club in 2021, are in such rich form.

Riyad Mahrez – the only City attacker with a consistent position – has netted six. De Bruyne and Foden have added five apiece.

City share their goals around for fun, while three players (Sterling, Silva and Jesus) have had over 100 touches in the opposition box, with Grealish on 99. No Chelsea player has managed more than 76 (Mount). 

De Bruyne's 36 chances created is more than any other player in City or Chelsea's squads, while the Belgian is level with Foden and Gundogan for big chances created (six), with Mount the only Blues player able to match them.

Allowing whichever front five plays for City to flourish is Rodri, who has taken the mantle from Fernandinho at the base of midfield, and creative support comes from the superb Joao Cancelo.

He has provided four league assists from 22 chances created, which ranks him sixth in the competition for defenders, with his four big chances tied for fourth, behind Trent Alexander-Arnold (11), Andrew Robertson and Reece James (five), who is a big injury miss for Chelsea.

It is not just Cancelo's passing and crossing that supports City's attack, however, with the full-back registering fourth in the league, behind three club-mates, for total carries (380) and sixth for carry distance (3,867 metres). Thiago Silva is the sole Chelsea player to have a place in the top 10 for either statistic.

Finely balanced

While City seemingly have the edge heading into Saturday's contest, Tuchel found a way to thwart Guardiola's system last season.

City countered this with their aggressive approach at Stamford Bridge but only four months previously, Guardiola's men fell short in their first Champions League final – Havertz scoring the winner in a match that perhaps forced City to make their move for Kane.

Tuchel won all three of his encounters with City in 2020-21, though those matches are the only times he has beaten Guardiola, who won three of their five Bundesliga meetings.

Chelsea went toe-to-toe with Liverpool and came out with a point earlier this month, though if Chelsea are to rope City back in, they need their investment in Lukaku to pay off.

Should City's death by a thousand cuts prevail, Chelsea's title challenge might well and truly have bitten the dust.

There is nothing quite like an individual football award to create debate and there is sure to be plenty when one of Lionel Messi, Robert Lewandowski or Mohamed Salah is named this year's men's FIFA Best winner on January 17.

While team trophies will always be the end game for most players, the few who are good enough to be in contention for individual accolades put such importance on being recognised that they have been known to move clubs specifically to improve their chances of collecting silverware in a tuxedo rather than just in a dirty kit. Neymar, anyone?

The Ballon d'Or is broadly seen as football's version of the Oscars, but the annual FIFA Best award is also becoming one of the more sought-after honours and the latest men and women's winners will be crowned on Monday at FIFA's headquarters in Zurich.

The awards will be decided by an international jury comprising national team coaches and captains, a selected journalist from each territory represented by a national side, and fans registered with FIFA's website.

Stats Perform has taken a look at the data of the three nominees for the men's prize to try and decipher who is likeliest to come away with the prize.

The Best... at scoring goals

It is a harsh truth that scoring goals will almost always win over stopping them when it comes to the top awards, so it makes sense that Messi, Lewandowski and Salah are the nominees for this year.

The trio scored 129 goals between them in 145 collective games across 2021, which includes 21 overall in this season's Champions League group stage, over seven per cent of the total amount scored in the competition (297).

However, there is no doubt which of the star trio stood out for finding the net time and time again.

Lewandowski, last year's winner, was frankly ridiculous in front of goal, netting 43 in the Bundesliga in a calendar year, breaking Gerd Muller's record from 1972, and 58 in all competitions in just 47 outings.

Salah had a mixed year at Liverpool, with the Reds' poor form at the start of 2021 almost costing them a place in the Premier League's top four. However, thanks in part to the Egypt forwards' 15 goals in 28 games between the turn of the year and end of the campaign, Liverpool reached the quarter-finals of the Champions League and finished third in the league, ahead of European champions Chelsea.

His nomination is mostly down to his form in the second half of the year, though, with Salah scoring 22 goals in 25 games in all competitions. He scored 37 times in all competitions in 2021, at least 15 more than any other Premier League player, and is top of the scoring charts for 2021-22 in England's top flight with 16, well ahead of team-mate Diogo Jota in second place on 10.

For Messi, it is probably the other way round. The legendary Argentine has managed only six goals in 16 appearances since his sensational move from Barcelona to Paris Saint-Germain at the end of last season.

However, his 28 goals in 29 games for Barca between New Year's Day and his emotional departure was Messi at his effervescent best, even if the rest of the team was lagging behind him, and he followed that up with four at the Copa America for Argentina.

Consistency and underlying numbers

While it has been mostly impressive from all three, Lewandowski's consistency puts him above the other two, with a 55.17 big chance conversion percentage across 2021, compared to Messi's 45.95 and Salah's 45.90, and an overall shot conversion rate of 28.02 against Salah's 19.37 and Messi's 15.74.

Unsurprisingly, this also led to a significantly better minutes per goal rate, with Lewandowski averaging a goal roughly every 68 minutes, while Messi bagged one every 116 minutes and Salah every 122 minutes.

While all three scored plenty of penalties that could potentially skew the numbers, Lewandowski again dominated in expected goals (xG) without spot kicks, with a 2021 xG excluding penalties of 43.86, compared with Salah's 29.6 and Messi's 24.37.

Not all scorers have to be selfish

Of course, while goals make the headlines, someone has to create them or nothing will happen. This is where Salah and Messi start to claw it back.

Lewandowski managed seven assists in 2021 in all competitions and created 61 chances for team-mates. Quite respectable for any number nine.

However, despite a perhaps unfair reputation for being "selfish", Salah recorded 11 assists and created 88 chances, while Messi had 13 assists to his name and created exactly 100 opportunities.

In terms of big chances (which Opta define as an opportunity from which a player would be expected to score), it is a bit closer, with Lewandowski crafting 16, Salah 18 and Messi 24, though with the Pole usually playing higher up the pitch it makes sense that the opportunities he creates would come in a dangerous area.

Show us your medals

While it is not entirely without merit, it does seem a bit counter-intuitive to base how much credit an individual player deserves on what his team has achieved. There are plenty of world-class players who did not always play in teams capable of winning much silverware, just like there have been numerous average players who were simply members of squads that won a lot, whether they had much to do with it or not.

It usually comes into consideration when the big awards are handed out though and is likely the ultimate reason that Messi pipped Lewandowski to last year's Ballon d'Or.

Messi helped Barcelona win the Copa del Rey last season and then inspired Argentina to glory at the Copa America, with his nine direct goal involvements helping them to win the trophy for the first time since 1993.

Lewandowski, on the other hand, had less success at Euro 2020, with Poland crashing out at the group stage of the re-arranged tournament. He still managed to score three goals in as many games for his country, but was unable to force them into the knockout stages.

He did win the Bundesliga title again with Bayern, but after claiming a remarkable treble the year before, it may rather harshly look like a bit of a regression.

Unfortunately for Salah, this is probably where his chance to finish above the other two falls down, as arguably proven by his astonishingly low seventh place in the Ballon d'Or voting.

The 29-year-old did not have an opportunity for national team success in 2021, and he is currently aiming to help Egypt recover from an opening game defeat to Nigeria at the Africa Cup of Nations in Cameroon, but he also did not win any trophies at club level.

It is possibly a bit too early for Salah, but his form has been electric this season and if he can continue it through the rest of the campaign, ideally for Liverpool collecting a trophy or two along the way, he will certainly be in the conversation for next year's honours.

The question will be the same as it was for the Ballon d'Or; will those with voting power be more impressed by Lewandowski's goalscoring exploits, or by Messi's final six months at Barca followed by a successful Copa America, or could Salah's explosive form in the second half of the year see him sneak it?

Whatever the outcome, you would be hard-pressed to argue that the trio are not currently the three best footballers on the planet, though if you take a look on social media when the winner is announced, you'll find plenty of people willing to try.

Mikel Arteta was unable to provide excuses on Sunday, after Arsenal crashed out of the FA Cup with a 1-0 defeat to Nottingham Forest.

"We are out of the competition and we have to apologise."

Arsenal have won the FA Cup a record 14 times, with their last triumph coming in Arteta's first half-season in charge. But while they will lament being on the end of a giant-killing, they have the chance to bounce back from only their second third-round exit in the past 26 seasons when they face Liverpool at Anfield on Thursday in the first leg of a semi-final in England's other major domestic cup competition.

Initially, the Anfield fixture of this EFL Cup tie was due to be played second but Liverpool's coronavirus crisis, which Jurgen Klopp revealed was ultimately down to several false-positives within the squad, led to the postponement of the first leg at Emirates Stadium, originally set to be played on January 6.

The Gunners lost 4-0 at the home of the Reds in November's Premier League meeting, as Arteta's men were dealt a harsh dose of reality after a 10-match unbeaten run across all competitions.

A further 10 games have passed since then, with Arsenal losing four and winning six.

With Pierre-Emerick Aubameyang having been stripped of the captaincy and ostracised before travelling away for the Africa Cup of Nations, Arteta has once again turned mostly to youth as he looks to continue to grow a new "culture" at Arsenal, who sit fourth in the league.

Claiming some measure of revenge at Anfield could just prove Arteta's plan is the solution for long-term success, and four players seem crucial to that blueprint.

Super-sub Smith Rowe

Aubameyang's omission for a breach of club rules brought unnecessary noise in December, though results were not immediately impacted. With the 32-year-old not playing since December 6, Alexandre Lacazette has stepped in to spearhead Arsenal's attack, but behind him Arteta has an abundance of talent to choose from.

Emile Smith Rowe started the season brilliantly, though has only started one league game since November. That has not stopped the 21-year-old from being effective, however, with three of his eight league goals this season coming from the bench in recent wins over West Ham, Leeds United and Norwich City.

Smith Rowe has only played 63 league minutes since featuring for 70 in the December 2 loss to Manchester United, meaning he averages a goal every 21 minutes in that period. 

Asked about Smith Rowe's game time before the defeat to Forest, which the midfielder missed altogether, Arteta explained he had been carrying an injury, one which also means he is a doubt for Thursday's clash.

"The only reason that changed the dynamic was that [injury], and obviously now there are others who are doing well and have been performing well. That changed the situation, but I am very happy with him," Arteta told reporters, before adding that competition for places can only be positive.

"This is why we need that, we raise the level. Each player raises the level of the player next to him, and this is how you evolve as a team, how you create a culture around the team."

Few could say Smith Rowe isn't embracing that "culture", with his recent hot streak off the bench reflecting a commendable attitude.

Martin the maestro

One of the "others" Arteta was referring to will surely be Martin Odegaard, who signed permanently from Real Madrid following a bright loan spell last season. Given the Norway international burst onto the scene at the age of 15 in 2014, becoming the youngest footballer ever to play in his homeland's top tier, it would be easy to forget he has only just turned 23.

Only Bukayo Saka (38) has created more chances than Odegaard (34) in Arsenal's squad in all competitions this season, with the midfielder topping that metric per 90 minutes when it comes to players to have featured over two times, producing 2.1 opportunities on average.

His eight direct goal contributions ranks him fifth in the squad while his shot conversion rate of 18.2 is good for a midfielder. Indeed, only the outstanding Smith Rowe, who has converted 32.1 per cent (nine goals) of his 28 attempts can boast better among Arsenal's midfield contingent.

Yet with Smith Rowe's recent spell as an impact player, Odegaard has started behind the striker in Arsenal's 4-2-3-1, his eye for a pass and knack of finding space on the edge of the area a key facet to some slick attacking play.

That playmaking ability was on show in the 5-0 thrashing of Norwich on Boxing Day, with Odegaard providing the assists for Arsenal's opening two goals and a key role in their final strike.

While Odegaard (33) has had fewer touches in the opposition box than left-back Nuno Tavares (35) and completed just 10 dribbles compared to Smith Rowe's 23 and the team-leading Saka's 27, no Arsenal player has attempted more passes in the opposition half than Odegaard (523), with 80.9 per cent (423) proving successful.

Odegaard's ability to keep Arsenal in possession with neat and incisive passing has been crucial for the Gunners. Indeed, only centre-backs Ben White (933) and Gabriel Magalhaes (822) have found a team-mate on more occasions than the playmaker (703).

Wing wizards

Flanking Odegaard (or Smith Rowe), Saka and Gabriel Martinelli both head to Anfield in superb form. While Saka scored the opener in the 2-1 defeat to City on New Year's Day, Martinelli has directly contributed to six goals from 18 appearances.

Martinelli's devastating turn of pace was on show in a 4-1 rout of Leeds United last month, though the Brazilian flyer missed a golden chance to put Arsenal back in front in their defeat to City, slicing wide of an open goal – if we're being generous, perhaps he was put off by the referee. Still, he should have scored.

Nevertheless, his four goals have come from an xG value of 4.2, putting him just about on par based on the quality of chances he has been provided with, though that is in contrast to Saka.

The England winger's tally of seven goals is second only to Smith Rowe (nine), yet they have come from 4.6 xG, suggesting the 20-year-old is finishing chances the average player wouldn't ordinarily be expected to convert.

For example, his swept effort low into the corner against City was only the seventh-best chance of the game, while a wonderful solo strike at Norwich (his second goal of the game) registered an xG of just 0.03 – essentially, this translates to a three per cent likelihood of scoring.

Saka also leads the way for big chances created (defined by Opta as an opportunity from which a player would reasonably be expected to score) with eight, three more than any of his club-mates, and only Nicolas Pepe has provided more assists (five to four).

Not only is Saka already a proven creator of opportunities, but he is now putting them away with unerring accuracy.

Arsenal were dealt a harsh lesson on their last visit to Anfield, but with a second leg at home to look forward to and with Liverpool missing key duo Mohamed Salah and Sadio Mane, Thursday could see Arteta's counter-attacking youngsters thrive, with a north London derby against Tottenham up after that.

Even if it again proves a step too far, there's no doubt the future is bright.

When the Tampa Bay Buccaneers traded for Rob Gronkowski back in April 2020, it was tough to picture the future Hall of Fame tight end having a substantial impact.

After all, Gronkowski had appeared to have spent his last reserves in Super Bowl LIII when he hauled his clearly ailing body downfield and made a diving grab for a 29-yard fourth-quarter reception that set up the New England Patriots' only touchdown of their 13-3 win over the Los Angeles Rams.

It was a catch that at the time served as a spectacular last ember of an incredible career, but the Bucs put stock in Tom Brady's belief that Gronkowski's fire to deliver at the highest level still burned brightly, and they have been emphatically vindicated.

He caught seven touchdowns in the 2020 regular season, but he once again saved his best for the grandest stage with a dominant two-touchdown performance in the Bucs' Super Bowl LV rout of the Chiefs.

And, with Tampa Bay shorn of most of their depth at the wide receiver position, there will be an even greater emphasis on Gronkowski to rise to the occasion as the Bucs attempt to defend their title.

His numbers from a surprisingly efficient 2021 suggest he is more than up to the task.

Running out of receiving weapons

Last year, opposing defenses weren't able to consistently dedicate special attention to Gronkowski, such was the wealth of options at Brady's disposal.

They went into the previous campaign's postseason with Mike Evans, Chris Godwin and Antonio Brown at receiver as well as having Gronkowski at tight end.

Evans remains and remains an extremely gifted number one receiver who perhaps does not get the credit he deserves for his hugely impressive consistency.

In Week 18, Evans surpassed 1,000 yards receiving for the eighth successive year, an NFL record for the longest streak to start a career.

He leads all wideouts (min. 100 targets) in burn percentage, which measures how often a receiver wins his matchup with a defender on a play where he is targeted. Evans has won 75.2 per cent of those matchups this season, while he is also first among receivers who meet that threshold with a big play rate of 43.1 per cent.

However, Brown's departure from the team leaves the Bucs without a receiver tied third for burn yards per route (4.0) among receivers with at least 50 targets.

Godwin is on the shelf with torn ligaments in his knee, robbing Tampa of another top pass-catcher who on the list of wideouts with triple-digit targets trails only Evans, Tyreek Hill and Stefon Diggs with his burn rate of 70.4.

Their absences place Gronkowski's ability to produce elite play at tight end into sharper focus and his efforts at the age of 32 should give great encouragement to Tampa.

Gatecrashing the elite

Gronkowski was long since seen as the gold standard at the tight end position. A mismatch as a receiver and a tremendous blocker, peak Gronk is the blueprint for modern-day NFL tight ends.

But when he re-entered the league after a retirement that lasted only one season, a new order of top tight ends had been established.

George Kittle and Travis Kelce are regarded as the best of the best at tight end, with Darren Waller a tick below that duo. This season, Mark Andrews and Dallas Goedert have taken leaps to threaten to join the elite.

Yet in several metrics, it is Gronkowski who stands above that group at the top of the pile.

Gronkowski's burn rate of 72.1 per cent trails only Goedert and Kelce among tight ends with at least 25 targets. However, he is first in burn yards per target (13.00), burn yards per route (3.5) and big play rate (45.7 per cent).

Simply put, no tight end in the NFL has done a better job at creating separation and turning his targets into explosive plays than Gronkowski, whose rapport with Brady shows no sign of dissipating.

Indeed, when he targeted Gronkowski in the regular season, Brady had a passer rating of 113.6. To put that into context, the best overall passer rating this season was Aaron Rodgers' 111.9.

When Brady needed a big play in his final Super Bowl with the Patriots, he turned to Gronkowski, and it was their combination that was arguably the most crucial offensive aspect of the defeat of the Chiefs last year.

With Brown gone and Godwin out, the cupboard is not as well-stocked for the Bucs heading into this postseason, meaning if Brady is to claim ring number eight, he will again need to turn to the man whose renaissance in Tampa is arguably as impressive as his own ceaseless brilliance.

Twelve months ago, Dani Alves was in training with Sao Paulo in between a disappointing draw with Athletico Paranaense and 1-0 home defeat in the San-Sao derby to Santos.

At the same time, Vinicius was in the midst of a Real Madrid goal drought that began in late October and didn't end until March 1.

Now, they are preparing to face each other in the Supercopa de Espana semi-final, with Alves astonishingly back at Barca and – perhaps even more surprising – Vinicius probably one of the two best players in LaLiga.

It's fair to say that, at this point last year, there were growing concerns Vinicius simply wasn't going to be the player many had hoped or predicted.

While he was still only 20, he didn't seem to have developed a great deal since joining from Flamengo in 2018. If anything, he looked as though he was in reverse, and rumours were beginning to swirl regarding his future.

It was a little like when Samuel L. Jackson's Mace Windu in Star Wars doubts the prophecy that Anakin Skywalker is 'the One' to destroy the Sith.

Yet, Vinicius (SPOILER ALERT) succeeded where Anakin failed, the Brazilian managing to get himself back on the right path. In terms of decisiveness, he looks unrecognisable now, so ruthless that you'd suggest he was more machine than man – just without the helmet and Darth Vader's asthmatic problems.

First and foremost, Vinicius' haul of 12 goals is already three times his previous best in a single LaLiga season, and he's still got almost half a campaign left.

Undoubtedly Carlo Ancelotti's trust will be playing a part. Zinedine Zidane never quite gave the impression he had absolute faith in Vinicius, but the Italian has been unwavering in that regard practically ever since he got the job for a second time.

But Vinicius deserves the most credit.

He's showing much more maturity in his game. He's gone from being the most frustrating player on the pitch to very often being the most decisive.

His expected goals (xG) per 90 minutes is up to 0.49 from 0.3, which suggests he's generally getting into better positions than before – but perhaps even more importantly, though connected to that, is the fact he's averaging 0.67 goals over the same period.

Last season that figure was just 0.14, roughly half his xG, evidence that his decision-making and composure were at a pretty low level.

Vinicius is creating chances more frequently as well (1.9 per 90 mins, up from 1.5), but his biggest improvement is definitely in his decisions in front of goal.

Of course, outperforming xG can be a sign of good fortune, so some might suggest his form isn't sustainable – we won't know whether that's the case for a while yet.

But even when you disregard that, the improvement he's shown is massive. He's gone from wasting chances he shouldn't, to scoring chances he shouldn't.

His first goal in the recent 4-1 win over Valencia was an interesting exhibition of his new-found striker's instinct. Not only did he continue his run after offloading to Karim Benzema, he then made his own luck when bundling the ball through a crowd before nonchalantly passing into the bottom corner.

While maybe not an astounding goal in isolation, it's difficult to imagine that passage going the same way last season. Confidence breeds confidence, and he looks almost unstoppable.

With that in mind, the man he'll come up against on Wednesday will presumably be getting himself pumped up for a real challenge.

Of course, Alves has been there, done that, got the T-shirt and wore the hat. If we go back to the bad Star Wars analogies, Alves is Obi-Wan Kenobi. You thought he was gone for good but returns when you need him most.

This will of course be his first Clasico since returning to the club in November, answering Barca's call when all they could afford were free signings.

As much as anything, Wednesday's game should provide Xavi with understanding as to what the 38-year-old's ceiling is.

It's unlikely he'll be fazed about the prospect of tussling with Vinicius, though he'll be aware of the standard his compatriot is now playing at.

If Vinicius can be kept quiet, Barca's chances of success will increase exponentially, and it's by no means outlandish to suggest this game could be a turning point in their season, as Xavi noted in his pre-match news conference.

With a recent bank loan allowing them to sign Ferran Torres and president Joan Laporta declaring Barca are "back", all of a sudden the outlook isn't so gloomy, particularly now they're through the worst (they hope) of an injury and coronavirus outbreak crisis.

Xavi's brought through several talented young players already, and then there were injured 'wonderkids' Ansu Fati and Pedri waiting in the wings. They look set for important roles over the rest of the season and beyond – you might even suggest there's plenty of cause for optimism at Camp Nou.

The Supercopa offers a chance to really consolidate the growing positivity, and success in the Clasico might indicate Barca are genuinely back.

We may only be a week into 2022, but the first major international football tournament of the year is on the horizon, with the Africa Cup of Nations kicking off on Sunday.

It's been a long time coming as well – it was initially due to take place in June and July 2021 but was brought forward to January 2021 due to concerns about the weather. It then had to be pushed back a year due to the coronavirus pandemic.

Of course, fans and teams have had to put up with the usual posturing from those at certain clubs regarding the inconvenience of relinquishing players in the middle of the season, but despite that there remains a healthy selection of big names.

In fact, given the standard the likes of Mohamed Salah, Sadio Mane, Riyad Mahrez and Achraf Hakimi usually play at, some might even argue this is one of the highest-quality groups of players to feature at a single AFCON.

But the beauty of every international tournament is that there's more to them than the big names – there are plenty of promising younger players looking to impress for a global audience.

Kamaldeen Sulemana, 19, winger – Ghana

Hold on to your seats! Kamaldeen is sure to ramp up the excitement at AFCON, such is his rather chaotic approach to attacking – and acrobatic celebration. The teenage winger is immensely tricky and agile, with his 246 take-on attempts in the 2020-21 Danish Superliga nearly twice as many as anyone else – to put that into context, only Lionel Messi managed more (261) in the top five leagues. He's carried that into Ligue 1 following his move to Rennes, with his average of one shot involvements from a ball carry every 43 minutes being the second best in Ligue 1 (min. 900 minutes played) after Kylian Mbappe – that's obviously pretty good.

Ibrahim Sangare, 24, defensive midfielder – Ivory Coast

While good performances at AFCON alone may not be enough for players to convince big clubs they're worth a punt on, showing promise might just get a few more eyes on them. Sangare is definitely one of those who could put himself 'in the shop window'. The PSV midfielder has a lot about him, particularly when it comes to defending. In this season's Eredivisie, only three players (at least 500 minutes played) have averaged more than his 3.4 tackles per 90 minutes, while he ranks fifth for interceptions frequency (2.5) and third for middle-third recoveries (5.7). He's also technically proficient and happy on the ball, with only three players attempting more passes (81.1) on a per-90-minute basis than him.

Hannibal Mejbri, 18, attacking midfielder – Tunisia

A former France youth international, Mejbri may have only declared for Tunisia in 2021 but this will already be his second international tournament. The Manchester United midfielder started all six of Tunisia's games as they reached the final of the Arab Cup in December, eventually losing to Algeria in the final. Hannibal may not feature quite as prominently in a full-strength squad, but the midfielder possesses the kind of off-the-cuff abilities that endear him to fans – if not opponents. He is known to be targeted for fouls when playing for United's second team, such is his natural talent.

Ilaix Moriba, 18, central midfielder – Guinea

2021-22 hasn't quite gone as Moriba presumably thought it would. He left Barcelona after failing to agree a new contract, despite having broken into the first-team setup at Camp Nou. The midfielder had shown exceptional promise, particularly on the ball – he averaged 3.2 dribbles per 90 minutes, a total bettered by only four team-mates, and boasted a success rate of 89.3 per cent, with only Miralem Pjanic bettering him. The €16million signing has played just twice in the Bundesliga since the move to Leipzig and will surely be relishing some competitive action.

Edmond Tapsoba, 22, centre-back – Burkina Faso

If Burkina Faso go on to have a good tournament, Tapsoba will almost certainly have had something to do with it. The centre-back is an extremely elegant player for someone roughly the size of a small building and whose name sounds like a hipster bar, and at club level he performs a vital function in getting Leverkusen on the front foot, with his 13.5 progressive ball carries in the Bundesliga this term second only to Alphonso Davies. If he can translate that to the international stage, Burkina Faso will have a real weapon in the middle – even if he doesn't, he'll still give them aerial threat at set-pieces.

Abdul Fatawu Issahaku, 17, forward – Ghana

The case of Issahaku is a rather intriguing one. Transfer rumours in 2021 suggested Liverpool had signed him for £1.5million, but that soon turned out to be false. He remains in his native Ghana, but the exciting attacker has seemingly done enough to earn a shot at international level despite being just 17 – he's the second-youngest player at the tournament. But he's used to that sort of situation. After all, before he'd even turned 17 in March he was named Player of the Tournament at the Under-20 Africa Cup of Nations. While that Liverpool move never materialised, he's got himself another opportunity to shine.

It's possible that no manager in European football has had a greater transformational effect on a club this century than Diego Simeone has had at Atletico Madrid.

Of course, it's impossible to actually prove/disprove that, but when you consider his eight trophy successes is almost a quarter of all the major silverware the club have ever won, most counterarguments would dissipate.

Yet 2021-22 has been far from smooth, and they could head into Sunday's trip to Villarreal 17 points behind pacesetters Real Madrid, assuming Los Blancos beat Valencia 24 hours earlier.

Part of Atletico's problem is they seem to have lost the defensive solidity that's been a cornerstone of Simeone's tactical plan in his decade at the club.

Sunday's match will be the first since the 10-year anniversary of his bow as Atletico coach on January 7, 2012, providing the opportunity to look at how much of a challenge this season is proving to be.

11 away games, no clean sheet

Nothing is more indicative of Atletico's current malaise than their struggles to shut teams out – they're not getting battered, but we're so used to seeing them boast the shrewdest defence in LaLiga.

That's simply not the case this season.

Their 22 goals conceded is bettered by seven teams and isn't far off being twice as many as Sevilla (13), LaLiga's strongest defence this term.

Atletico's issues have been particularly prominent on the road. They've not secured an away clean sheet in LaLiga in any of their previous 11 such games, which is their worst run since December 2010 (17 matches).

No team has more away clean sheets across the top five leagues than Atletico (85) since Simeone's first match, but Manchester City (82) are closing in, fast.

Missing home comforts

The away struggles alluded to before also translates to defeats, with Atletico losing each of the three most recent matches on their travels.

It's worth remembering that two of those came to Madrid and Sevilla, first and second in the table, but typically Simeone's Atletico are solid enough that such sequences don't occur, regardless of the opposition.

In fact, prior to this run, Atletico had not conceded two or more goals in three successive away league games since January/February 2014.

If they lose to Villarreal, it will be their first streak of four consecutive defeats on the road since December 2011, the month Simeone was appointed.

Yellow Submarine on the rise

It wasn't so long ago that Unai Emery appeared to be in danger of being sacked, then he held talks with Newcastle United but ultimately rejected them.

Some might even suggest that his show of loyalty then bought him a little more time at the Ceramica.

As it turns out, Villarreal staying their hand seems to have worked out well. While they may only be as high as eighth, fourth-placed Atletico are just four points ahead of them.

Their recent run has been crucial to that as well, having won each of their past four league games, the most successive LaLiga victories they've managed under Emery.

The end is Unai?

Atletico can perhaps take confidence from the fact Emery has a dreadful record against Simeone.

He has never beaten the Argentinian in 15 matches across all competitions, the most games Emery has managed against another coach without a win in his entire career.

On the flip side, every record or streak is there to be broken – this particular one surely cannot go on forever, and this is one of the more beatable Atletico teams Emery has faced.

He will hope the end of that particular run is nigh.

Philippe Coutinho and Steven Gerrard are back in tandem, nine years after they first began to forge an alliance at Liverpool.

Gerrard referred to Coutinho as a friend this week, but he is also set to be his boss at Aston Villa after the Brazilian agreed to join from Barcelona.

The theory is that if anyone can get a tune out of Coutinho, it should be his former Liverpool captain, given the strong relationship they had on the pitch, which has endured in the years since.

Barcelona hoped Coutinho would be a leader in their orchestra, but instead his displays often struck a bum note, and the Blaugrana are happy to have offloaded one of the most expensive signings in their history.

Exactly how much they have ended up paying Liverpool for Coutinho is unclear, given the various clauses that were in the January 2018 deal, but he cost the Catalans giants well over £100million, and the return on that investment was far from what was expected.

In LaLiga, he played 76 times, starting 51 games, and managed 17 goals and nine assists. Overall, he had 26 goals and 13 assists in 106 games.

Gerrard will be hoping the 29-year-old Coutinho can sprinkle some magic at Villa, having already shown his qualities in the Premier League.

After a slow start at Liverpool, his performances came on leaps and bounds; across his final two and a half seasons with the Reds, Coutinho managed 38 goals and 24 assists in 99 matches.

In this World Cup year, Coutinho will want to be playing regularly. Such a prospect was off the table at Barcelona, where planning for the long-term future is the order of the day, along with hacking down the wage bill.

Coutinho made an encouraging start at Barcelona, and across all competitions he managed 10 goals and six assists in just 22 games across his first half-season with the Blaugrana.

In 2018-19, he played 54 times and finished with 11 goals and five assists, with his productivity already in decline. From an average of 0.97 goal involvements (goals and assists) per 90 minutes in that honeymoon period after first arriving from Liverpool, his contribution shrank to 0.43 involvements per 90 in his first full season.

In an all-conquering Bayern side, that bounced back up to 0.84 goal involvements per 90 minutes in the 2019-20 campaign, but Coutinho could not crack on at that pace once back at Camp Nou.

Last term, as he made just fitful contributions, his involvements averaged out at 0.57 per 90, and this season's rate was just 0.3 as his inevitable exit approached.

In his final half-season at Anfield, the former Inter winger was contributing 1.2 goal involvements per game as his Reds form peaked.

Across his Reds career, Coutinho scored 19 Premier League goals from outside the penalty area, Opta said. Only Gerrard has scored more for the club from outside the box (33).

Since returning to Barcelona from Bayern, Barcelona have tended to do better when Coutinho has played no part in games.

When he has been involved, either as a starter or substitute, they have won just nine of 24 LaLiga games for a 37.5 per cent success rate, averaging 1.4 points and 1.5 goals.

But without him they have won 23 of 33 (69.7 per cent) in LaLiga, losing only three times, averaging 2.3 points and 2.4 goals per game.

It is little wonder he has played just 26 per cent of minutes across all competitions for Barcelona this season. Injuries have blighted his Barcelona career, and if this is the end, with a loan potentially leading to a sale, then all parties will be happy to move on.

Villa are signing a special player, one that Gerrard still likes to tag as a "magician", but also a footballer who perhaps needs a reminder of those old tricks in his repertoire.

If Gerrard can bring back that spark, that trickery with end results, Villa will be all the better for it.

The 18th and final round of the NFL regular season is upon us and there remains plenty of intrigue in a frantic scramble to make it to the playoffs.

Five teams from the AFC are competing for two postseason berths, while one spot is up for grabs in the NFC. 

Away from the Super Bowl picture, there are a number of other intriguing subplots ahead of an action-packed weekend.

Stats Perform previews some of the standout games and the best of the rest.

Los Angeles Chargers (9-7) @ Las Vegas Raiders (9-7)

The winner of this contest is guaranteed a playoff spot, while there is also a scenario whereby a tie could see both advance. Interestingly, six of the previous seven games in Oakland/Las Vegas have been decided by three points or fewer.

The Raiders beat the Colts on a last-second field goal last week to prevail 23-20 – their fifth win of the season by four points or fewer, tied with the Packers and the Titans for the most in the NFL.

Justin Herbert set the single-season passing touchdowns record for the Chargers last week with his 35th of the campaign. He now requires 172 yards this week to also take the passing-yards record.

The Chargers' 34-13 win against the Broncos was their fourth victory in a win while scoring 30 points or more. They have averaged 33.9 points per game in wins this season, second most in the NFL behind the Bills (35.1).

Pittsburgh Steelers (8-7-1) @ Baltimore Ravens (8-8)

The Steelers have won three in a row against the Ravens, with all three of those victories being decided by less than a touchdown, the most recent coming by a 20-19 scoreline last month.

Last week's 12-point win over the Browns was the Steelers' largest of the season, though not since 1969 have they gone a full campaign without winning by at least 13 points.

The Ravens are coming off the back of a 20-19 loss to the Rams, their league-leading eighth game decided by three or fewer points this season – no team in NFL history has had more than nine games decided by three or fewer points.

Najee Harris rushed for 188 of the Steelers' 190 rushing yards against the Browns and accounts for 77.9 per cent of his side's rush yards this season, the highest share of any player in the NFL.

Kansas City Chiefs (11-5) @ Denver Broncos (7-9)

The Chiefs will be looking to respond to their defeat against the Cincinnati Bengals in week 17 when they take on the Broncos, whom they have defeated in 12 successive meetings – the league's joint-longest active winning streak along with the New England Patriots against the New York Jets.

Despite last week's defeat, the Chiefs have scored at least 30 points in four successive games, which is the longest-running streak in the NFL and one short of their all-time record of five set in 2004 and 2018.

Kansas lead the way in the NFL with 391 first downs this season and, with nine more this weekend, will become the fifth team in the last 70 years with 400 or more first downs in a season.

The Broncos were defeated by the Chargers last time out to ensure a losing season for the fifth straight year, an unwanted run they last went on from 1963 to 1972 with 10 straight losing seasons.

The Jaguars require a victory against the Colts to avoid becoming the fourth team in the last 30 years to have consecutive seasons with two or fewer wins. The Colts have lost three games this season by exactly three points – the Seahawks are the only team this season that has failed to win a single game by three or fewer points with more losses in such games (0-5).

The Rams can clinch their third NFC West title in six seasons season since moving back to Los Angeles with victory over the 49ers. However, the Niners have won each of their last five meetings with the Rams.

The Falcons have three successive wins against the Saints in Atlanta and are seeking a fourth in a row for the first time since between 1991 and 1994. Following defeat to the Bills last week, the Falcons have alternated between wins and losses over their last seven games.

The Bills can clinch their second consecutive division title with victory against the Jets, following on from a previous run of 24 straight seasons without finishing top. All 10 of Buffalo's wins this season have come by 12 points or more.

Premier League managers are already feeling the strain amid cascading numbers of COVID-19 cases and mid-season injuries. Now many top bosses stand to lose stars to the Africa Cup of Nations.

Africa's greatest football show – now commonly known as AFCON – gets under way on Sunday in Cameroon.

Although the 2019 edition was held in June and July, it has historically been a January-into-February tournament and has returned to that place on the calendar.

A host of Premier League big names are hoping to make an impact during the four-week tournament, which falls slap-bang in the middle of European club campaigns, causing a major clash of competitions.

Premier League clubs certainly cannot complain of a lack of fair warning. It was June 2020 when African football chiefs decided the 2021 edition of the tournament would have to be pushed back by 12 months to a January 2022 start, in the hope the coronavirus crisis would have eased.

Here, Stats Perform takes a look at which teams from the English top flight might feel its impact the most.

Can Reds cling on in title battle?

If Liverpool lose no further ground on leaders Manchester City by the time their stars return from AFCON, then Jurgen Klopp would surely settle for that.

The 2019-20 Premier League champions have taken two points from a possible nine to leave the title as effectively City's to lose, and now Klopp is going to have to get by without Mohamed Salah, Sadio Mane and Naby Keita.

Egyptian striker Salah is the Premier League's leader in goals (16) and assists (9, level with Trent Alexander Arnold) so far this season. He has taken 80 shots in 20 games (38 of these have hit the target), played 12 throughballs and created 40 chances from open play: in each of those categories he is at the top of the Premier League charts for players defined by Opta as forwards.

How do you cope without such a contribution? Having Mane on hand would help, but Mane will be turning out for Senegal, a team who, like Salah's Egypt, are firmly in the mix as serious trophy contenders. Don't expect either back at the end of the group stage.

Mane has eight Premier League goals this term, including the opener at Chelsea recently. That goal return puts Mane joint-second among African scorers in the Premier League this season, level with Watford's Emmanuel Dennis, who is not in Nigeria's squad.

Mane has played 19 throughballs and has made 23 tackles to boot, which is the seventh highest number of tackles by a forward in the league this season, a rarely mentioned attribute of his game. He does not always tackle with his elbow, either.

Keita will presumably be less of a miss, with the Guinean's Anfield contribution remaining underwhelming, but Liverpool have been so hard hit by absentees recently that to lose anybody for up to five weeks is an inconvenience.

They are at least assured of Joel Matip's presence this month. The centre-back last played for Cameroon in 2015 and has retired from international duty. That is bad news for the AFCON hosts but helps Liverpool, given Matip remains a sturdy presence, with a duel success of 69.47 per cent this season ranking him third among Premier League defenders with 10 or more appearances, and a passing accuracy of 88.89 per cent putting him eighth in that metric.

Liverpool only have two league games inked in between now and the end of AFCON, against Brentford and Crystal Palace, but the Reds also have two postponed fixtures to be slipped in somewhere along the line.

Wintertime Blues?

Pep Guardiola's Manchester City hold a 10-point lead over second-placed Chelsea, with Liverpool a point further back but possessing a game in hand on the top two. Reigning champions City have won 11 straight Premier League games and the Citizens have the resources to be able to cope with the short-term loss of Riyad Mahrez, who will captain Algeria.

Mahrez's six goals and four assists this season have come at a startling rate. Given the depth in City's squad, he does not always start, so to appreciate his contribution it is worth looking at his numbers per 90 minutes on the pitch.

The former Leicester City forward is averaging 0.64 goals and 0.43 assists per 90 minutes – impressively close to Salah's return of 0.81 and 0.45 in those categories – and is one of only four Premier League players with 10 or more appearances to average at least 1.00 goal involvements per 90 (Michael Olise 1.43, Salah 1.26, Roberto Firmino 1.24, Mahrez 1.07).

The Blues of Chelsea may have concerns over the absence of goalkeeper Edouard Mendy, given the Senegalese's stabilising influence at the back. His save percentage of 77.14 has only been beaten this season in the league by Wolves' Jose Sa (80.82) and Arsenal's Aaron Ramsdale (77.46).

Spaniard Kepa Arrizabalaga struggled in the early stages of his Chelsea career and is now the undoubted understudy.

Yet Kepa's form when given an opportunity this season has not given such cause for concern. The former Athletic Bilbao goalkeeper has been chiefly used in cup action, and he has achieved a remarkable save percentage of 81.48, suggesting that for a short run of games, he could be a perfectly able deputy.

Can an exodus to Africa affect the race for Europe?

Will fourth-placed Arsenal miss Pierre-Emerick Aubameyang? It seems unlikely now, given he was dropped and stripped of the captaincy after a disciplinary breach before heading off to join Gabon. He has not played for a month. The Gunners won five games in a row without him, including four in the league, before being unlucky to lose to Manchester City.

Cold facts tell us Arsenal have a points average of 1.9 per Premier League game when Aubameyang has started games this season, and 1.5 when he has been either a substitute or out of the team, but those figures may not be significant given the momentum Mikel Arteta's players have built in the recent absence of the 32-year-old. His continuing exile from the first team seems unlikely to cause much consternation.

For manager Arteta to lose Thomas Partey (Ghana) at this point is a blow though, with the former Atletico Madrid player having been excellent in the 2-1 defeat to City, having been slowly building up to such a performance. He had more touches, won more duels, made more tackles and played more successful passes than any other Arsenal player.

Arsenal have a big derby at Tottenham coming up on January 16, and they might feel Partey's absence that day, particularly given Spurs, who currently sit sixth, are sending no current first-teamers away to AFCON.

Splitting the north London rivals for now are West Ham, in fifth, and it will surely have hurt David Moyes to wave off Said Benrahma for a month of Algeria duty. The playmaker has five goals and four assists in the league this season, as well as making 83 ball recoveries and creating 21 chances in open play. That makes him one of only 13 players in the competition to top both 80 recoveries and 20 open-play chances created, and one of only five Premier League stars to tick both boxes and score at least five times. Crystal Palace's Wilfried Zaha, away with Ivory Coast, is another member of that small group.

Seventh-placed Manchester United will lose Eric Bailly to Ivory Coast too. But with Phil Jones back in the first team, will Bailly be missed? The former Villarreal centre-back has played just 217 minutes in the Premier League this season. United youth prospect Hannibal Mejbri is also away, in his case with Tunisia.

Further into mid-table, Wolves must find an alternative to the excellent Romain Saiss (tackle success rate 72.73 per cent) on the left side of their defence, after he joined up with Morocco. Brighton and Hove Albion powerhouse Yves Bissouma has the highest tackle success rate among midfielders to have made more than 40 such challenges in the Premier League this season (50 attempted, 35 won: 70 per cent hit rate) and he will line up for Mali after ending an international exile.

Leicester City sent away striker Kelechi Iheanacho (2 goals, 4 assists this season) for Nigeria service at a bad time for the Foxes, given injured Jamie Vardy faces several weeks out of action.

Palace are firmly in favour of players heading away to represent their countries, but the Eagles never particularly like to be without Zaha (5 goals, 1 assist, 86 dribbles). Since his return from Manchester United in August 2014, Palace have averaged 1.2 points and a 32.9 per cent win percentage with Zaha in their starting line-up, and 0.9 points and a 24.5 win percentage when he has not been in that matchday XI. The loss of Cheikhou Kouyate (80.56 per cent success rate from 36 tackles) to Senegal duty may also diminish the sturdiness of Patrick Vieira's Eagles spine.

Can Clarets cope without Cornet?

The relegation scrap seems more likely to be affected by transfer market activity than departures to AFCON.

Newcastle United and Norwich City, the league's bottom two, are sending nobody away, while fourth-bottom Watford have kept Dennis (8 goals, 5 assists) and it remains to be seen what happens to Ismaila Sarr (5 goals), who has been absent with injury of late but has headed for checks with Senegal doctors.

Burnley, who sit 18th, are seemingly the team to watch carefully here. Maxwel Cornet, now away with Ivory Coast, has scored six Premier League goals from just 10 shots on target, and Sean Dyche must find a way to make the Clarets impactful without the former Lyon man.

If Thomas Tuchel is after any advice on how to deal with the Romelu Lukaku issue, the Chelsea head coach could do worse than to have a brief word with the man he will come face-to-face with on Wednesday.

Under now-Tottenham boss Antonio Conte across two seasons with Inter, Lukaku enjoyed the best form of his career, scoring and assisting a combined 81 goals in 95 appearances.

Lukaku has not been as prolific since returning to Stamford Bridge in August, finding the net seven times in 18 games, and already his future at Chelsea has been called into question following an explosive interview in the Italian press that was published last week.

The Belgium international was subsequently dropped for Chelsea's crucial clash with Liverpool on Sunday but is in line return for the EFL Cup semi-final first leg with Spurs after holding clear-the-air talks with his manager, meaning a possible reunion with Conte.

Here, Stats Perform looks at how Conte got Lukaku out of the "deep hole" he found himself in at Manchester United, as the striker himself put it, and explores how Tuchel can go about getting the most out of Chelsea's all-time record purchase.

ROM AMONG EUROPE'S ELITE

As well as declaring an unhappiness with his role at Chelsea and expressing a desire to return to Inter as part of his 30-minute chat with Sky Sport Italia, Lukaku also opened up on the "hurt" he felt when Conte departed San Siro.

That is no surprise given the Belgian's form between arriving at Inter in August 2019 and departing two years later. 

The 47 Serie A goals scored by Lukaku in 72 games under Conte is his best return under any of the 11 managers he has played for at club level, followed by the 43 netted in 103 Premier League games when working with now-national team coach Roberto Martinez at Everton.

That includes a return of 24 goals in 2020-21 alone, on top of 11 assists, as he became the first player to score 20-plus goals and set up 10 or more in a single Serie A season since Opta started to record such data in 2004-05.

Indeed, only Cristiano Ronaldo (83), Kylian Mbappe (97), Lionel Messi (106) and Robert Lewandowski (121) were directly involved in more goals in all competitions among players from Europe's top five leagues than Lukaku's 81 across the 2019-20 and 2020-21 seasons.

FLOPPED IN FAVOURED FORMATION

That impressive form helped Inter end their 11-year wait for Scudetto success last time out, a year on from falling just short in the Europa League with defeat in the final, but Lukaku was not alone in inspiring the Nerazzurri to glory.

Alongside him was Lautaro Martinez, who was very much the perfect foil in Conte's preferred 3-5-2 formation, which the Italian used 31 times in 38 league matches last season.

It is a formation Tuchel has used on only two occasions in the Premier League this term – in September's 1-0 home defeat to Manchester City and the 1-0 victory at Brentford three weeks later. 

Lukaku started both games alongside Timo Werner and Chelsea's tally of five shots against City and five against Brentford are the fewest the Blues have managed in any league game this term – Lukaku responsible for just one of those – as were the four and two chances created respectively.

While City's quality and dominance of the ball must be factored in, Lukaku's minimal involvement against Brentford was surprising – and surely no coincidence.

That west London derby blank came in the midst of a 10-game run without a goal for Lukaku, not helped by niggling injuries and a COVID lay-off, which he has since put an end to with three goals in four matches.

Chelsea's formation in those three most recent games Lukaku has scored in, incidentally, came with three attackers spread across the frontline. And there was one other common denominator, too: Mason Mount being on the field.

MOUNT TO PLAY THE MARTINEZ ROLE?

Mount assisted Lukaku's most recent goal in a 1-1 draw against Brighton and Hove Albion from a corner and the pair have combined to create nine chances in total for one another in the league this term, making it easily Chelsea's most dangerous partnership.

No Chelsea player has combined more regularly with Lukaku than Mount, with the pair linking up 10.06 times per 90 minutes so far this season. While that may not appear a huge amount on the face of it, next on that list is Mateo Kovacic with 6.45 combined passes between himself and Lukaku per 90.

However, Mount still has some way to go if he is to match the 54 combined chances created for each other in Serie A by Lukaku and Martinez in their two seasons used in tandem at Inter, which equated to nine assists.

Lukaku's relationship with Mount does provide some promise, though, as does the Anderlecht academy product's goalscoring performances in his most recent two outings prior to being dropped against Liverpool, showing Chelsea do not necessarily have to replicate Inter's system to help their main man thrive.

TUCHEL WILL NOT SHIFT

Lukaku is averaging fewer passes, overall touches and touches in the opposition box this season compared to last, while also shooting less frequently, dribbling less and creating fewer chances for others.

Yet instead of attempting to find the perfect formula and personnel for Lukaku, Tuchel will not shift from his own way of thinking.

"We cannot just play like Inter in the hope that will bring the most out of Lukaku. The system they played not only suited Romelu but also Lautaro Martinez and others. If you don't have five players you can't play five defenders," Tuchel said on the eve of the Tottenham tie.

"It works both ways. It is more about principles of how we play. I feel he is more impatient than anything else. He wants to be involved more, wants more big chances. 

"Like with every transfer, you have to accept there is a change of environment, culture, team-mates, playing style, belief. He's not the first player to take time, but even while doing it he was scoring goals."

And maybe Tuchel has a point. After all, for all the talk of Lukaku's struggles and unhappiness, he is scoring at an almost identical rate to Cristiano Ronaldo (0.54 goals per 90 minutes compared to 0.56), and remains one of Europe's most prolific strikers of the past decade.

Now back from injury and a team exile brought on by his own actions, only Lukaku can ensure he avoids falling down another deep hole that he may this time be unable to escape.