Romelu Lukaku was dropped to the bench by Thomas Tuchel for Chelsea's Champions League last-16 meeting with Lille on Tuesday. 

Belgium international Lukaku was a peripheral figure during Saturday's 1-0 victory over Crystal Palace at Selhurst Park and was named among the substitutes for the first leg against Lille at Stamford Bridge. 

He was replaced in the line-up by Cesar Azpilicueta, with Kai Havertz handed the central striking role and flanked by Hakim Ziyech and Christian Pulisic. 

Lukaku paid the price for a historically quiet game display against Palace, which saw him manage just seven touches – one of which was from kick-off. It was the fewest touches by a player who featured for 90+ minutes in a single Premier League game since 2003-04, when Opta has the data available from.  

Tuchel made two other changes to his team, with Marcos Alonso replacing Malang Sarr and Mateo Kovacic chosen ahead of Jorginho. 

Champions League holders Chelsea get their knockout campaign started on Tuesday as the defence of their crown enters an altogether more challenging stage.

Thomas Tuchel's men may feel they have dodged a bullet or two by getting this draw, with their next opponents Lille struggling to match the highs of their Ligue 1 title victory from last season in 2021-22.

Tuesday's other encounter sees Juventus travel to Villarreal, with Massimiliano Allegri looking to improve on the knockout exploits of Maurizio Sarri and Andrea Pirlo before him.

Here, Stats Perform delves into the Opta data to pick out the key statistical narratives and subplots ahead of Tuesday's games.

Chelsea v Lille

Much of the attention at Stamford Bridge will be on Romelu Lukaku, whether the Belgian plays or not.

The big-money signing's struggles this season have been well-publicised, but he hit a new low on Saturday as he touched the ball just seven times in the win over Crystal Palace – that is the fewest by any player to feature for 90 minutes in a single Premier League game since at least 2003-04.

On the other side of the contest is a striker aiming to emulate Lionel Messi. Jonathan David may not have scored a Ligue 1 goal since December but the talented Canadian impressed in the second half of the group stage.

He scored one goal in each of his last three appearances in the competitions, meaning if he scores on Tuesday he will be the second-youngest (22 years, 39 days) non-European to score in four successive Champions League games after Messi (21y, 155d in November 2008).

That is not to say Lille are a high-scoring side. Many will be wondering who let Les Dogues out of Group G, given their haul of seven makes them the lowest-scoring group winners since Leicester City and Atletico Madrid (seven each) in 2016-17. In fact, no team from that section scored more than eight.

The omens are, perhaps unsurprisingly, overwhelmingly in Chelsea's favour here. Only Manchester City (15) and Bayern Munich (14) have won more Champions League games than the holders since the start of last season, while Lille are appearing at this stage for just the second time ever.

Further to that, Tuchel boasts a fine record in Champions League knockout ties, having progressed from/won (including finals) eight of his previous 11 (73 per cent), a success rate bettered by only three managers (minimum 10 knockout ties): Vicente del Bosque (80 per cent - 8/10), Jupp Heynckes (86 per cent - 12/14) and Zinedine Zidane (88 per cent - 14/16).

Villarreal v Juventus

Sarri and then Pirlo were both tasked with establishing a new era at Juventus, but when Allegri returned after a two-year break in pre-season, he picked up the pieces of a side that had regressed significantly.

There remain plenty who feel Allegri never should have been re-hired, but this tie at least gives him an opportunity to point to a degree of progress – at least in the context of the Champions League.

After all, neither Sarri nor Pirlo got beyond the last 16. Allegri, on the other hand, was only eliminated at this stage once in five seasons, and that was to Pep Guardiola's excellent Bayern side.

His counterpart on Tuesday, Unai Emery, has something of a point to prove as well, but his has more to do with his own personal record.

While something of a specialist at Europa League level, having won the competition four times including last season, he has won only one of six knockout games in the Champions League.

Much of Emery's hope will be pinned on Arnaut Danjuma.

The Dutchman – who recently returned from two months out and scored a hat-trick at the weekend – had a hand in five goals in the group stage, which is already a joint-club record for the club in the competition.

By no means are the Yellow Submarine a one-man team, however. Young winger Yeremi Pino caught the eye in the group and is plotting to become only the fourth Spanish teenager to score in the knockout stages of the Champions League after Bojan, Cesc Fabregas and Raul.

Thomas Tuchel freely admitted he is unsure about how to get more from Romelu Lukaku after the striker endured a particularly quiet 90 minutes against Crystal Palace at the weekend.

A last-gasp goal from Hakim Ziyech clinched Chelsea a 1-0 win at Selhurst Park, but much of the post-game focus was on Lukaku's impact – or lack of.

The Belgium international had just seven touches across the entire match, the fewest ever recorded in a single Premier League match for a player to feature for at least 90 minutes since Opta started collecting the data (2003-04).

Remarkably, just two of those were in the first half and one was from kick-off, and Tuchel suggested after the game that it did not say much about Chelsea "in general".

Chelsea now turn their attention to the Champions League and hosting Lille on Tuesday, but Lukaku's performance and general struggles at the club were once again at the fore.

Asked how he can get Lukaku more involved, Tuchel said: "What can I do? I don't know.

"We have to deal with it. The data is out there and the data speaks a certain language. He was not involved in our game, it's sometimes like this.

"It's, of course, not what we want or Romelu wants, but it's not the time to laugh about him and makes jokes about him."

It was put to Tuchel that the disruption caused by long-term injuries to wing-backs Ben Chilwell and Reece James, who were key during the early months of the season, could have played a part in Lukaku's lack of cohesion with the rest of the team after a promising start.

"Every style changes with long-term injuries of key players," he continued. "We played many games with a back three and wing-backs and two of the key wing-backs are Reece and Chilly [Chilwell], who got injured at their peak level. They had a huge impact on our game offensively and defensively.

"So of course, this changes but we are not the only team where these players have the huge impact and in our system the wing-backs are a crucial position.

"Still, we can also play and win games without any player, this is our job and what we want to do. This is what we try when we have injuries or COVID cases. It's on us and me to adapt and find solutions.

"There is a history of strikers struggling at Chelsea, so it may not be the easiest place in the world for strikers.

"In my opinion, Chelsea are a team considered a strong defensive team, a physical team, that has a certain attitude when in competitive football.

"We demand a lot of our strikers in terms of defending. We want to be physical, hard-working group that wants to play a physical game as well as a skilful game.

"We are on the subject and are well aware, but like always in football it's not just one reason to sort. It's a complex sport and we will continue to play with faith, with a team effort, and it's what we do."

Thomas Tuchel admitted Chelsea must improve after looking "drained and exhausted" in their 1-0 win at Crystal Palace, but praised his team's defensive solidity following Hakim Ziyech's late winner.

Ziyech's 89th-minute strike meant the Moroccan has scored in three successive league games for the first time since doing so in the Eredivisie with Ajax in September 2019, and kept the London club within seven points of second-placed Liverpool in the Premier League table.

Chelsea were far from their best throughout the contest, however, managing just nine attempts on goal in the match, while striker Romelu Lukaku had seven touches of the ball, the lowest figure since Opta's Premier League records began in 2003-04.

Speaking after the match, Tuchel conceded that Chelsea were not at their best at Selhurst Park, before hitting out at their congested fixture list.

"Every team will have games like this, especially between December, January and February, where the conditions can create adversity", said the former Borussia Dortmund and Paris Saint-Germain boss. 

"If we had another draw, maybe we'd talk about this game longer, but when you win it you have the chance to move on and forget it.

"We won't wake up tomorrow wondering what we could do better.

"We look a bit drained and exhausted. Everyone is giving their very best, but we are struggling a little bit, so it's important to win and keep going."

Romelu Lukaku had one of the quietest games in Premier League history as Chelsea overcame Crystal Palace 1-0 on Saturday. 

A last-gasp goal from Hakim Ziyech stole all three points for Chelsea, who looked to be heading for a disappointing draw at Selhurst Park following an ineffectual display from Lukaku. 

The Belgium international had just seven touches across the entire match. That is the fewest in a single top-flight game for a player to feature for at least 90 minutes since Opta started collecting the data in 2003-04. 

Lukaku only had two touches in the first half – one of which was from the kick-off – and completed just four of his six passes. 

He did not register a single shot and was caught offside twice, with one of those leading to Ziyech having a goal disallowed by VAR. 

Asked about Lukaku's lack of touches, head coach Thomas Tuchel said: "It says he was not involved and could not make a point. I'm not sure it says so much about us in general." 

Lukaku scored in the semi-final and final of Chelsea's Club World Cup success last week but has found the back of the net just twice in his past 14 Premier League outings.

Chelsea assistant coach Zsolt Low heaped praise on Kepa Arrizabalaga following his impressive display in the Club World Cup semi-final win over Al-Hilal.

The 2020-21 Champions League winners progressed to the final of the competition, where they will face Palmeiras after scraping past the Asian champions 1-0.

Romelu Lukaku's 32nd-minute strike settled the contest at the Mohammed bin Zayed Stadium in Abu Dhabi, but it was a generally lacklustre display by Chelsea.

After controlling large periods of the first half, recording 61.9 per cent of possession, the Blues only registered 45.4 per cent after the break and had to rely on important saves from Kepa to keep Al-Hilal at bay.

The Spain international, who was given the nod ahead of Edouard Mendy following the latter's return from his Africa Cup of Nations triumph with Senegal, denied Plymouth Argyle's Ryan Hardie from the penalty spot in the narrow FA Cup victory on Saturday.

Meanwhile, the pick of his saves against Al-Hilal four days on saw him deny Mohamed Kanno in brilliant fashion.

And Low, who oversaw Chelsea in the absence of Thomas Tuchel following a positive COVID-19 test, highlighted the performance of his goalkeeper.

"[Kepa's] very important," he said. "In the cup, he did a big performance to save the penalty. 

"Today when we needed him, he was there and made one big save. 

"He's in very good shape; he plays and trains well. We're lucky to have him. 

"In the next days, we have to decide who plays the final. 

"We're waiting for Thomas' opinion and the goalkeeping coaches before we take the decision for the final."

Low also applauded Lukaku, who netted his first goal since the 5-1 win over Chesterfield in the FA on January 8.

Other than his strike, though, the Belgium international registered just one shot on goal – straight at the goalkeeper – and was caught offside on three occasions.

Nevertheless, Low insisted he was delighted with the striker's efforts.

"Everyone's very happy he scored," he added. 

"He fought very hard and tried hard in the last game; that's why we gave him the chance. 

"We hoped for a bit of luck to score today. He's very happy, we're very happy and hope he continues and scores in the final."

It wasn't so long ago that the notion of Juventus hoovering up talent from Serie A rivals would have been seen in a negative light by most Italian football fans.

But while their domination of Italy's top division only really ended last season when Inter brought the Bianconeri's nine-year subjugation of Serie A to a halt, their current situation would make you think it was far longer since they were a challenger.

When the season resumes after this international break, Juve will go into their next fixture at least 11 points off the top, down in fifth. For years their recruitment has been muddled and misguided, with Aaron Ramsey's fringe squad status the perfect embodiment of that.

But Dusan Vlahovic's arrival shows there is life in the Old Lady yet, and given the striker's rise to prominence, this move is also potentially massive for Serie A in general.

Fiorentina hadn't been shy about their desire to cash in on the Serbian, who turned 22 on Friday. They have been very public about how they simply could not afford to lose out on a transfer fee, a situation that was quickly threatening to become a real issue given his contract was due to expire in 2023.

Pretty much all of Europe's biggest clubs were linked with Vlahovic at some point over the past 12 months, and for a while most people's money would have been on him moving to England.

"Oh, another emerging talent scurrying off to chase the big bucks of the Premier League, how predictable," many 'calcio' fans were presumably muttering to themselves as… *checks notes*… Arsenal and Tottenham circled.

As the story reportedly went, Vlahovic's agent didn't seriously consider those two in the end. Whether it might have been a different story for Manchester City, Liverpool, Manchester United or even Chelsea is unclear, but a coup it remains for Juve.

Vlahovic's impact on Italian football, particularly over the past 18 months, has been significant. Some have suggested he's Serie A's answer to Erling Haaland – perhaps a slight exaggeration, but there's a reason Juve are investing in a guy who in 2021, let's not forget, became only the second player in the past 60 years to net 33 Serie A goals over a single calendar year.

Juve's attraction to him makes absolute sense when you consider a metric as reductive – yet, crucial – as goals. Following Cristiano Ronaldo's exit last year, the Bianconeri were left with a gaping maw in terms of finishing ability. The faith placed in Alvaro Morata to pick up the slack was as optimistic as it was naive, as the Spaniard has five in 22 Serie A games.

Vlahovic should, in theory, provide them with a number nine who is dedicated to goals. As Fiorentina's focal point this term, he has recorded 87 shots (second-most among Serie A players) and scored 15 non-penalty goals across all competitions.

Some might point to the fact those 15 strikes are a considerable increase on his non-penalty xG (expected goals) of 10.2, and there's obviously a chance he won't prove to be quite so clinical for Juve, but it clearly shows they are buying a player brimming with belief.

Similarly, being surrounded by better players in Turin may mean Vlahovic doesn't have to try as many low-xG shots. A quick look at his shot map in Serie A this season shows a significant variation in goal distances, which obviously has an impact on his xG per shot, which is 0.11 (excluding penalties).

That may not mean anything in isolation, but when you compare that to Tammy Abraham's 0.18, there's quite a gulf. The England striker seems to be better at getting into clear-cut goalscoring situations, but if Vlahovic is already proving this deadly from worse positions, imagine what he could do if he improves.

It's worth noting that by no means does Vlahovic only have eyes for goal. In fact, among 'conventional' strikers in Serie A this season, only four – and Paulo Dybala, nominally a creator anyway – have had more involvements in shot-ending sequences without taking the shot (45).

That speaks to Vlahovic's link-up play and his effectiveness at knitting attacks together in the final third, a skill that is not to every striker's liking. Yet he manages to fulfil this function without it being to the detriment of his goals output.

At Juve, assuming he links up in attack with Dybala, there may be less need for him to get as involved and that could potentially be how he improves his record of getting into higher xG situations.

It's fair to assume Juve would see that pay dividends on the goals front, given he already only averages 2.2 touches per shot inside the box – that's only fractionally more than Robert Lewandowski, Cristiano Ronaldo and Haaland (all 2.0), showing how he's more of an instinctive finisher than the likes of Mohamed Salah (3.1) and Kylian Mbappe (3.3), who are more about dribbling and beating defenders.

The fact is, Vlahovic still has elements to his game that could still improve, yet he's already performing at a high level. He may be young, but Juve have signed a player who can go straight into the team, which will presumably start being built around him.

Whether Massimiliano Allegri is the right coach for this new Juventus is another debate, but the acquisition of Vlahovic could be a game-changer.

At the very least, it's a genuine boost for Serie A to keep arguably its finest young player in the league despite the Premier League waving its vast sums in his direction.

With Ronaldo and Romelu Lukaku gone, Vlahovic is surely primed to be Serie A's new poster boy.

Thomas Tuchel can understand why questions are being asked about Romelu Lukaku's disappointing form is himself unsure why the striker is currently struggling.

The Blues' club-record signing has scored just once in his last five appearances, with that solitary goal coming against non-league Chesterfield in the FA Cup.

Lukaku's struggles, coinciding with his return to the side after being dropped in the wake of a controversial interview, have been laid bare in his recent Premier League outings.

He had 21 touches in last week's 1-0 loss to Manchester City – the fewest of any starting player for either team – and 18 in Tuesday's 1-1 draw with Brighton and Hove Albion.

From his three shots across the two games, the 28-year-old hit the target twice but could not get on the scoresheet, leading to some public criticism from Tuchel in the week.

And ahead of Chelsea's home league meeting with Tottenham on Sunday, Tuchel said it is hard to pinpoint exactly what is going wrong for Lukaku in his second spell at the club.

"Welcome to reality," he said at Friday's pre-match news conference when asked if Lukaku is perhaps unfairly targeted. 

"We are in the spotlight, we are judged, all of us and that's daily business. It's like this. If you are a decisive player, if things go very well, people talk about you.

"If not, the same people talk about you. This is part of the business, like it or not. Nothing more to say."

Tuchel added: "I don't know if I can explain his form. It's very rare in football that you have a situation or a problem with a one-thing solution.

"It's always a mix of a lot of influences. He was already more involved. He is struggling. We have already discussed the reasons.

"But he is not the only one we rely on to win games. There is nothing special to it."

Chelsea enter this weekend's London derby with Tottenham winless in four Premier League matches, leaving them 12 points behind leaders City having played a game more.

However, the Blues have already won three games against Spurs in all competitions this term, including twice in this month's two-legged EFL Cup semi-final.

The last Premier League team to win three games against a single opponent in the same month were Aston Villa against Blackburn Rovers in January 2010.

Tuchel does not believe his side's recent cup success against Antonio Conte's men will act as any sort of psychological advantage on Sunday, however.

"We play now three matches in such a short time which is pretty unusual, uncommon normally," he said.

"That's why I think they know what we do, and we know more or less what they do. It’s again for us to show up in games like this.

"They come from a late victory, that gives them a boost. We come from two wins in the cup.

"We play the match – it's not about having advantages and being philosophical about it. It's about delivering, being in the right mood and attitude to deliver a top performance."

Thomas Tuchel was unimpressed by the performance of Romelu Lukaku after Chelsea lost 1-0 to Manchester City at the Etihad Stadium.

A stunning goal from Kevin De Bruyne sent Pep Guardiola's City 13 points clear of Chelsea in the Premier League table, with the Blues having won just four of their last 12 league games.

Lukaku cut a lone figure for much of Saturday's game, having just 21 touches – the fewest of any starting player for either team – while completing just seven out of 12 passes, and he did not win any of his seven aerial duels.

He also saw a shot saved by City goalkeeper Ederson when through one-on-one at the start of the second half, a chance that Opta measured with an xG (expected goals) score of 0.365, meaning that he would be expected to score at least one in three times from that position.

The £97million signing from Inter recently apologised to the club and the fans after giving an interview in Italy where he appeared to criticise Blues boss Tuchel for not playing to his strengths.

Speaking to BT Sport after the game, Tuchel explained his frustration with the Belgian striker's display, saying: "He had many ball losses without any pressure, many ball losses in very promising circumstances. He had a huge chance.

"We want to serve him, but he is part of the team, and the performance up front, particularly in the first half, we can do much, much better."

Apart from Lukaku, Tuchel was reluctant to fault his team at the post-match news conference despite the defeat, and praised their attitude and commitment in the game, saying to reporters: "I think we lost on individual performance and on one situation today. In terms of attitude, commitment, defensive-wise, I am happy.

"We did not allow too many big chances, kept them to a minimum, and we were aware and active with our defending.

"We had big counter chances, big offensive transition chances we wasted. With the same performance we have won games against Man City, and we could draw this game, and, of course, lose this."

Chelsea managed just four shots and one on target, all of which came in the second half, and Tuchel acknowledged that the European champions did not create enough, only having seven touches in the City box compared to the hosts who had 31 in the Chelsea penalty area.

"We did not have enough chances for the ball wins and the movements we could have had," Tuchel added. "We could have had more chances if we played with better timing, better precision. It's simply like this.

"We had eight or nine transition chances and out of them we did not have a touch in the box. This is what I am critical about. If we miss chances, I am not critical. Everyone wants to score big chances, and we do not get a lot of them in big games.

"We could have had many more chances, that is what I am critical about. The decision-making and timing wasn't at the level we need."

Tuchel was also asked for his reaction to the Premier League's decision to postpone Sunday's north London derby between Arsenal and Tottenham after the Gunners made a request on Friday, due to having a number of players out through injury, suspension, COVID-19 or at the Africa Cup of Nations.

The former Borussia Dortmund manager has recently expressed frustration with the league for postponing some games and not others, including rejecting Chelsea's request to cancel their visit to Wolves in December.

"It's much better for me not to answer the question. Much, much better," the German said.

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.

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.

Chelsea boss Thomas Tuchel says Romelu Lukaku needs time to adapt to the physical demands of the Premier League, but insists he will not attempt to reinvent the striker.

The Belgium international returned to Stamford Bridge in a club-record transfer from reigning Serie A champions Inter in August.

However, the 28-year-old is yet to truly fire on all cylinders during his second spell with the Blues, amassing eight goals from 20 appearances in all competitions.

Lukaku was recently dropped by Tuchel following comments made in the Italian media, stating he was "not very happy with the situation" he finds himself in, while expressing a desire to return to the Nerazzurri one day.

However, the striker subsequently apologised to his manager and the fans, and was restored to the starting line-up for last week's EFL Cup semi-final first-leg win over Tottenham.

And Tuchel is confident it is only a matter of time until everything clicks into place for his number nine.

"Romelu had a huge physical impact in the game against Tottenham," he said. "Maybe he wasn't so spectacularly involved, but he was involved in playing a crucial part with his physical qualities.

"Once he adapts to the physical style of the league, there is no doubt he will have a huge impact. 

"We will not reinvent his style or reinvent the player. He can simply be Romelu, and then we are all fine, and then he will score because this is what he always does."

During his pre-match press conference ahead of Wednesday’s second leg against Spurs, it was suggested that Timo Werner could provide a link for Lukaku similar to Lautaro Martinez at Inter last season.

Responding to the suggestion, Tuchel said: "He could be, but I see no reason that we should copy Inter.

"We have our style and enough possibilities. We can play with two strikers; we can play 3-5-2; we have the possibility to play three strikers.

"We played a 4-4-2 against Tottenham in the first leg. I don't mean it in a harsh way; the players need to show they are good enough to start. 

"We are not inventing new stuff to make players better or happier. They have all it takes. It’s on them to show it."

Romelu Lukaku cast his Chelsea future in doubt with a recent interview – and the unsettled striker may now be offered a route out of Stamford Bridge by Paris Saint-Germain.

The 28-year-old revealed his regret at leaving Inter for Chelsea and questioned boss Thomas Tuchel's tactics, leading to him being dropped for the 2-2 draw with Liverpool.

Lukaku has returned for the Blues' two matches since, but doubts remain over whether he will still be a Chelsea player come the start of next season.

TOP STORY – LUKAKU LINED UP AS MBAPPE REPLACEMENT?

PSG look certain to lose Kylian Mbappe at the end of the campaign as the Real Madrid target fast approaches the end of his contract at the Parc des Princes.

The Ligue 1 giants are on the lookout for possible replacements and, according to El Nacional, Lukaku is one of those being considered by the club's wealthy backers.

The report suggests PSG are willing to pay €90million (£75.1m) to persuade Chelsea owner Roman Abramovich to part ways with the club's all-time record signing.

Lukaku, who apologised for giving the explosive interview in December, has scored eight goals in 20 appearances since returning to west London five months ago.

ROUND-UP

– Tottenham have decided to sell Steven Bergwijn this month amid interest from several clubs, according to Fabrizio Romano. Ajax are said to be among the sides to have already made an offer for the Netherlands international.

– Anthony Martial wants to leave Manchester United and has been touted as a possible target for Barcelona. But Spanish outlet Sport claims that, while Barca are eager to strengthen in the final third, Martial is not on their radar in this window.

– Chelsea defender Antonio Rudiger is wanted by a number of Europe's heavyweight clubs. According to Foot Mercato, PSG are prepared to pay more than the likes of Bayern Munich and Real Madrid, but the latter remains the Germany international's preferred choice.

– A rumoured target for Chelsea and Bayern, Sergino Dest's Barcelona future may become clearer in the coming days. El Nacional claims the defender's representatives are set to hold talks with the Catalan giants.

– After being jeered off the pitch by his own supporters in Tottenham's 3-1 FA Cup win over Morecambe on Sunday, The Athletic reports that club-record signing Tanguy Ndombele is hopeful of ending his tumultuous spell in north London this month.

– The Athletic also reports Aston Villa are now the favourites to sign Everton full-back Lucas Digne, despite previous interest from Chelsea. Newcastle United have also been linked, but Digne is apparently not considering a move to the relegation-threatened side.

Chelsea eased through to the FA Cup fourth round after a commanding 5-1 victory over National League side Chesterfield.

Goals inside the opening 20 minutes from Timo Werner, Callum Hudson-Odoi and Romelu Lukaku put Thomas Tuchel's side well in control at Stamford Bridge.

Andreas Christensen and Hakim Ziyech were also on target as the Blues scored five or more goals in a single game for the second time this season.

However, Chesterfield did grab a consolation in their first third-round appearance for seven years, as Akwasi Asante struck 10 minutes from time.

FA Cup finalists in four of the previous five seasons, Chelsea took the lead after just six minutes. Ziyech's shot ricocheted into the path of Werner, who found the empty net from close range.

Hudson-Odoi doubled the lead spectacularly. Receiving the ball on the left, the winger cut inside before bending a wonderful 25-yard effort into the far corner.

Lukaku made it 3-0 inside 20 minutes, the unmarked Belgium international turning home Lewis Hall's low cross after brilliant persistence by the youngster.

Hall was involved again just before half-time. His shot was parried to Christensen, who headed past Scott Loach for only the second goal of his Chelsea career.

Ziyech added a fifth from the penalty spot nine minutes after the break; smashing home after Calvin Miller brought down Christian Pulisic.

But the visitors did grab a consolation in their first FA Cup tie against Premier League opposition since facing Middlesbrough in the 1996-97 semi-finals, as Asante tapped into an open goal.

Thomas Tuchel praised the performance of the returning Romelu Lukaku after Chelsea's EFL Cup win over Tottenham.

The Blues took a huge step towards reaching the final after claiming a 2-0 victory in the first leg of the last-four tie at Stamford Bridge.

Lukaku was restored to the starting line-up after he was left out of the squad for Sunday's Premier League clash with Liverpool due to comments made in the Italian media.

The former Inter striker was quoted as saying he was "not very happy with the situation" he finds himself in, while expressing a desire to return to the Nerazzurri one day.

However, the Belgium international subsequently apologised to Tuchel, as well as the fans on the club's official website.

He played the full 90 minutes against Spurs – recording game-high tallies of three shots on goal and two on target – and the head coach was pleased with his contribution under difficult circumstances.

Asked what he made of Lukaku's performance, he told Sky Sports: "Good, absolutely happy. I was pretty sure he was not affected. 

"I see him on a daily basis. Even the last days, he seemed relaxed, fine with the situation and mentally moved on. 

"Romelu can handle pressure and adversity. It was a good performance; he contributed a lot to our defensive setup and had chances."

Tuchel also praised the focus and commitment of his players, although he believes they could have increased their margin of victory.

"It seems like a deserved win, an excellent result because it reflects the game," he added. "We could have scored more, but it is hard to score against Tottenham.

"We did create a lot – some huge chances – it could have been possible to score more.

"We never lost the focus; [we] never lost the commitment."