Joe Root has backed himself to score a maiden Test century in Australia as England search for a response in the Ashes after a dismal start.

England have been comfortably dispatched by Australia in the opening two Tests, succumbing to a 275-run defeat in Adelaide after a nine-wicket beating in Brisbane.

The tourists are without a win in 12 Test matches in Australia – their joint-longest such run (also 12 between January 1937 to February 1951) – and must defeat Justin Langer's side in Melbourne to stop them from retaining the urn.

Root has been in fine form, scoring 175 runs at an average of 43.75, but the England captain has yet to convert to three figures despite registering eight half-centuries in Australia - only Bruce Laird (nine times) has reached fifty more times in Tests Down Under without ever managing to a ton.

Indeed, Root has already surpassed Michael Vaughan (1,481 in 2002) for the most Test runs in a calendar year by an England player and sits fourth on the all-time list with 1,630 runs in 2021.

Root will eye the Boxing Day Test as a chance to further his record haul and the 30-year-old remains confident he can manage a maiden ton on Australian soil sooner rather than later.

"I expect a response from our players and I would like to bring a nice Christmas present home for everyone who stays up," Root told reporters.

"I feel in a really good place with my batting. I feel confident I can, in these next three games, bang out a hundred in these conditions.

"I know that's a brave thing to say but my conversion rate, this year, it's not been an issue at all.

"I feel like I have managed that well and have an understanding of how I want to score my runs. There's clarity there, I just need to keep putting myself in those positions, just have the bit between my teeth, [make it] 'over my dead body'".

Australia number three Marnus Labuschagne, who leads the Ashes scoring charts with 228 runs, overtook Root as the ICC's top-ranked men's Test batter and England's skipper admitted he wants his title back.

"I've never been one for that but it would be nice to have it back for Christmas," he responded when asked about being displaced at the top of the rankings.

Root will also be expecting a response from his bowling attack after he provided a scathing summary post-match in the second Test, in which he slammed his bowlers for repeating mistakes from four years ago and needing to be braver with their lengths.

He hopes his outburst, which was followed up by a "brutally honest" Chris Silverwood debrief with the England players, will act as a catalyst for change on Saturday.

"I did [get angry] at the end of the last game because of the situation we're in and the manner in which we lost," he continued.

"I'll always try to look at things with a level, pragmatic approach but I don't think you could after the way we've played those last two games. I expect a response from everyone this week.

"Twice now we've got ourselves into a position, second innings in Brisbane, first innings in Adelaide, with decent partnerships between me and Mala [Dawid Malan], we needed to go on and we didn't.

"Sometimes that can happen, but the first 20 balls, starting your innings, you've got to be disciplined, you've got to know how you're going to get yourself in the game and we can't afford to be losing eight wickets for 70 or 80 runs.

"It is not good enough, it is not the level that an England Test team should be playing at. The guys know that and they're very aware of that. Their work ethic is very good and you'll have seen how guys practiced and how long they bat for in the nets, but sometimes I think we can be smarter about what we are practicing and how we are practicing.

"And understanding that batting, in my opinion, it's about making good decisions for long periods of time."

Dalvin Cook has been placed on the reserve/COVID-19 list by the Minnesota Vikings.

The Vikings sit second in NFC North after improving to 7-7 with a 17-9 victory over the Chicago Bears on Monday, but have suffered a major blow ahead of their clash with Los Angeles Rams in Week 16.

Mike Zimmer's side face the 10-4 Los Angeles Rams on Sunday, however, they will now likely have to turn to Alexander Mattison to lead their rushing attack in a pivotal game.

Cook's absence would rob the Vikings, who currently occupy the third and final NFC Wild Card spot with three games left, of a back who leads the NFC, and ranks third in the NFL, with 1,067 rushing yards.

Cook, who has 226 carries and six scores on the season, joins numerous Pro Bowlers who have been added to the COVID-19 list this week, including the likes of Travis Kelce and Tyreek Hill.

Mattison, who was activated from the reserve/COVID-19 list on Wednesday, is the favourite to replace Cook as the starter, though Kene Nwangwu and Wayne Gallman are on the active roster and could see a share of the workload.

Mattison has three starts this season, in which he has totalled 26 carries for 112 yards, 25 carries for 113 yards, and 22 carries for 90 yards.

The Vikings have also activated wide receiver Dan Chisena from the COVID-19 list, while they have signed running back A.J. Rose Jr. to the practice squad.

The NFL's updated COVID-19 protocols have made it easier for players to return from the reserve/COVID-19 list, provided they are vaccinated, asymptomatic, and test negative twice within one day.

Players who are not vaccinated are subject to a mandatory 10-day quarantine, which leaves uncertainty whether Cook will be back in time to face the Green Bay Packers in Week 17.

Inter defender Federico Dimarco has signed a new contract that will keep him at the club until June 2026.

The full-back has put pen to paper on his existing deal, which was due to expire at the end of next season.

The former Italy youth international first joined the club at the age of seven, but made just two senior appearances and spent time on loan at Ascoli and Empoli before departing for Swiss side Sion in 2017.

However, Dimarco returned to the San Siro a year later as Inter exercised a buy-back option, with further loan stints following at Parma and Verona.

A lifelong Inter fan, Dimarco has impressed new head coach Simone Inzaghi this season and made 24 appearances for the Nerazzurri in all competitions, scoring two goals.

"I have been going to the stadium to watch Inter games since I was two years old," Dimarco said, as quoted by Football Italia. "This is certainly not a jersey like any other for me. 

"I've been an Interista since birth and even when I was on loan at Verona, the fans kept asking me to return. I feel loved here."

Occupying the left-hand side, Dimarco has proved a constant threat for Inzaghi, who has overseen an impressive title defence so far this campaign with his side four points clear at the summit heading into Serie A's mid-season break.

Australia head coach Justin Langer backed Mitchell Starc to be fit for the Boxing Day Test, though it remains unclear whether Josh Hazlewood will feature.

Langer's side boast a 2-0 series lead after a nine-wicket demolition of Joe Root's tourists in the opening Test in Brisbane, in which Starc bowled opener Rory Burns with the first delivery of the Ashes, and a 275-run victory in Adelaide.

Starc managed match figures of 6-80 at the Adelaide Oval as Australia made it nine wins in day-night Test matches, the only side with a perfect 100 per cent winning record, in the absence of Pat Cummins and Hazlewood, who injured himself at the Gabba.

Cummins is expected to return in Melbourne after coming into close contact with a positive COVID-19 case last Wednesday, but Langer remained unsure on Hazlewood's fitness as he praised the work of left-armer Starc.

On Starc, Langer told reporters: "He should be fine. He's tough. If he's not right, then we'll look at it. But at this stage, there's no indication suggesting he won't be playing the next Test.

"I'd be very surprised if he doesn't get up for Boxing Day. We will wait and see how Hazlewood pulls up.

"I honestly thought Starc was almost the man of the match last game. He became the leader of the group.

"There's been a lot of talk about Mitch Starc for the last few years but he just keeps turning up. He's an unbelievable athlete and he's incredibly fit.

"His resilience to just keep coming up over and over and over again is remarkable really, and his consistency of length and the way he controlled the tempo of the game last game was a great credit to him, particularly with Patty (Cummins) and Hazlewood not playing."

Indeed, Starc has been the pick of fast bowlers in the series thus far, picking up nine wickets at an average of 21.33, with off-spinner Nathan Lyon the only other player to record as many dismissals (nine wickets at an average of 25). 

The hosts initially named an unchanged 15-man squad for the remainder of the Tests in Melbourne, Sydney and Hobart but have added bowler Scott Boland to the group while the medical team continue to assess the fast-bowling group.

Langer has also confirmed Marcus Harris will open in the third Test, despite the left-handed batter managing just 38 runs across four innings, knowing Australia will retain the Ashes if they avoid defeat at the Melbourne Cricket Ground.

Dawid Malan insisted the time for talking is over and England must now prove themselves in Melbourne after a dismal start to the Ashes.

England have been outclassed in the opening two Tests, suffering a 275-run defeat in Adelaide after a nine-wicket beating in Brisbane.

The tourists are without a win in 12 Tests in Australia – their joint-longest such run Down Under (also 12 between January 1937 to February 1951).

The third Test starts on Boxing Day at the MCG, with bowler Mark Wood revealing England have held "brutally honest" meetings before Saturday after disappointment last week.

Captain Joe Root also provided a scathing post-match summary of his bowlers repeating mistakes from four years ago and needing to be braver with their lengths, and batsman Malan knows it is now time for England to right their wrongs as they look to keep their hopes of regaining the urn alive.

"We've done a lot of talking," Malan told reporters. "When you lose there'll always be reports that people are at each other. There definitely isn't. 

"One of the things we've been doing this series is a lot of chat amongst the players and encouraging players to challenge each other on a lot of things. 

"We've had good discussions with the coaching staff and without the coaching staff. It's vitally important that we as players take responsibility.

"Ultimately we are the ones who walk onto the field. We get all the preparation and all the knowledge we need, it's up to us to put it in place. We haven't done that well enough. 

"When we have those honest chats as players we feel we learn a lot more. Now it's about not talking any more, it's about putting it into play."

Malan has been one of England's standout performers so far, scoring 188 runs at an average of 47, with Root (175 at an average of 43.75) in close company.

However, England's next-best batter is all-rounder Chris Woakes (105), with the trio the only players to accumulate more than 100 runs from the first two Tests.

"Everyone is up for the challenge, everyone is really keen to face up to Australia," Malan added.

"We do it in white-ball cricket, we take them on, so hopefully we can get that mindset and not go into our shells and just try to survive, take the game to them.

"We are almost learning in Test matches because we haven't had that preparation. A lot of the guys haven't played in Australia so are trying to find ways of facing bowlers they haven't faced before but also to get used to bounce here. 

"I know there's a lead-up to dismissals and how bowlers set you up, but a lot of our dismissals were probably soft in the sense that we could have left them. You still have to score, but it's about making the right choices under pressure, myself included. 

"If you look at the way they have batted, the ones who have done really well, they've left really well so it's a good learning curve for us. Hopefully it's not too late."

Andy Murray will compete at the Australian Open for the first time in three years after being awarded a main-draw wildcard.

Murray has finished as a runner-up five times at Melbourne Park – most recently in 2016 when he was beaten by Novak Djokovic 6-1 7-5 7-6 (7-3).

The Scot has since struggled with a hip injury that had him on the verge of retirement, while he dropped to 134th in the world rankings.

However, the former world number one was in action at the Mubadala World Tennis Championship in Abu Dhabi last week, where he defeated Rafael Nadal before eventually falling to Andrey Rublev in the final of the exhibition event.

Murray was due to feature at the Australian Open in 2020 before a positive coronavirus test stopped him from playing, but the 34-year-old is thankful for the chance to compete in Melbourne again.

"I'm really excited to be back playing at the Australian Open and grateful to Craig [Tiley] and the team for the opportunity," Murray said on his wildcard, as quoted by the tournament's website.

"I've had some great times in Australia playing in front of the amazing crowds and I can't wait to step back out on court at Melbourne Park."

Tournament director and Tennis Australia chief executive Craig Tiley added: "Andy is renowned for his fighting spirit, passion and love of the game, and I'm delighted to welcome him back to Melbourne in January."

American Stefan Kozlov and Frenchman Lucas Pouille join Murray as the men's singles wildcards so far, with the other four spots likely to go to Australians and another to an Asia-Pacific player.

The Australian Open gets underway on January 17 with the final set to take place 13 days later.

Joe Johnson celebrated his return to the NBA in style on Wednesday, marking a two-minute appearance with the final two points of the game as the Boston Celtics beat the Cleveland Cavaliers 111-101.

Johnson, a seven-time All-Star, was signed up by the Celtics on Wednesday on a 10-day contract, after the league granted the team a hardship waiver due to the rising amount of COVID-19 cases across the competition.

The 40-year-old has now played in 1,277 career NBA games over what is now an 18-season career, though he had last featured for the Houston Rockets in 2018.

Having joined the Celtics in the 2001 Draft as the 10th overall pick, he was let go after his rookie season, but still enjoyed a stellar career. 

Across 17 seasons from 2001 to 2018, Johnson averaged 16.0 points per game, 4.0 rebounds and 3.9 assists.

He also recorded five successive campaigns of averaging over 20.0 points per game, during a seven-season stint with the Atlanta Hawks.

When he came on for his cameo against the Cavaliers, Johnson became the second-oldest player currently in the NBA, behind Udonis Haslem of the Miami Heat.

Johnson was dubbed "Iso Joe" due to his prowess in one-v-one situations throughout his career, and the veteran showed that skill had not gone away as he outjumped Justin Anderson to add the final two points onto Boston's score on Wednesday.

"It's amazing to be back here 20 years later," Johnson, who is the only current NBA player to have played against the legendary Michael Jordan, told reporters.

"It's still surreal to me. To come into the game and be somewhat effective, that's fun.

"At my age you try to relish every moment, enjoy the process and live in the moment. That's kind of what I'm doing right now, living in the moment and it's fun."

Johnson knows, however, that he has been given an unlikely opportunity.

"I wouldn't say give up, but I didn't have high hopes," Johnson added. 

"My son's 14, so he keeps me in the gym. We work and work and work, and I always talk to him [and say], "just work". Even when you can't see what's next, you just gotta continue to work."

Johnson was only notified of the possible deal with the Celtics on Tuesday, and shortly after was on a flight to Boston.

"It was a no-brainer for me," he said. "I'm a guy who really takes care of his body. I'm in pretty good shape. So I felt like I was ready to take on that challenge.

"So [my agent] asked me what I thought, and we just kept moving. I'm ready for whatever comes my way."

"He's still got a lot in the tank if you ask me," said Jaylen Brown, who scored a team-leading 34 points for Boston.

"I've watched him in the Big3, I've watched him before that, and I watched him growing up and he still looks like he's got something left in the tank so I'm happy to have him on board, to hear his voice, his advice. I think it's great."

December 23 marks the 10th anniversary of Diego Simeone's appointment as the head coach of Atletico Madrid.

The Argentine's return to his old club altered the modern history of LaLiga, as Atleti firmly established a 'big three' in Spain alongside Real Madrid and Barcelona while making waves in Europe.

While their style of play has not always courted admirers, Simeone's Atletico have won eight trophies – including two LaLiga titles and two Europa Leagues – and twice reached the Champions League final, all on a budget that has never matched that of their two biggest rivals.

In his decade in the capital, Simeone has also worked through a sizeable turnover of players, some of whom have established themselves as modern greats at the club.

Here, Stats Perform attempts to select a best XI from Cholo's time in charge...

Jan Oblak

Replacing Thibaut Courtois was no easy task, but signing Jan Oblak for €16million has proven to be an outstanding piece of business.

An invaluable part of Atletico's imperious rearguard, Oblak set a record for the fewest matches needed to record 100 clean sheets in LaLiga last July (182), helping his side to the league title – one of four trophies in his time at the club.

Oblak has won the Zamora Trophy – given to the keeper with the best goals-against-per-game ratio – in four of the past five seasons.

Juanfran

He might have developed at Real Madrid, but Juanfran became one of Atleti's most dependable and beloved players under Simeone.

A winger as a younger player, Juanfran was a strong attacking outlet as well as being reliable in defence at a time when Atleti's biggest rivals boasted Lionel Messi and Cristiano Ronaldo at their peak. It was cruel that he should miss a penalty in the Champions League final shoot-out defeat to Madrid in 2016.

Although he won seven trophies before leaving for Sao Paulo in 2019, Juanfran told supporters at his farewell reception: "You singing my name was better than winning titles."

Diego Godin

Signed the year before Simeone's arrival, Godin became the rock on which Atleti's redoubtable defence was built, playing 389 games before departing at the end of 2018-19 – a record for a foreign player at the club.

A winner of eight trophies under Simeone, the Uruguay centre-back was twice included on the Ballon d'Or shortlist as he formed a formidable partnership with Miranda and later compatriot Jose Gimenez. There are some who consider Godin, who became captain, to be the greatest defender ever to play for the club.

There are suggestions he could return to the Wanda Metropolitano should he leave Cagliari in the coming weeks.

Jose Gimenez

Gimenez had to wait for his chance, linking up with Atletico for the title-winning 2013-14 season as an 18-year-old and finding Miranda blocking his path. However, the veteran soon moved on to Inter and was scarcely missed.

Gimenez, who remains at Atleti and is still only 26, had the benefit of playing alongside Godin at international level, quickly forging a strong partnership after his 2013 Uruguay debut. At international level, he may well be the man to pass his colleague's record caps haul.

Simeone's latest stalwart has already continued his fine performances at club level beyond Godin's career, named as one of four captains immediately after the older man's departure. Only hamstring injuries have slowed Gimenez to this point, but he has plenty of time left to add to his legacy.

Filipe Luis

Atletico's outstanding 2013-14 season attracted the attention of some of Europe's biggest clubs – or at least one of them. Chelsea recalled Courtois and returned to sign two more title-winning stars: Filipe Luis and Diego Costa.

Both men eventually returned to Simeone's ranks, but Filipe Luis' Premier League move was particularly underwhelming. Jose Mourinho's Stamford Bridge rebuild found room for one of Europe's outstanding full-backs only as a back-up, with the Brazil international restricted to 939 league minutes – merely the 16th-most in that triumphant Chelsea side.

Atleti were only too happy to welcome Filipe Luis back the following year, installing him again as a regular in Simeone's sturdy defence.

Koke

Koke made his Atletico debut more than two years prior to Simeone's appointment and is still at the club as captain, aged only 29. He may even break Adelardo Rodriguez's club appearance record of 551 before the end of the season, now 30 short.

Under Simeone alone, Koke has turned out on 486 occasions, by far the most of any Atleti player, as he has had a big hand in the coach's various successes.

The midfielder emerged too late to contribute to Spain's international titles between 2008 and 2012 but was instead identified as Xavi's successor by the man himself. "An extraordinary footballer," according to a man who knows a thing or two about such players, Koke has consistently delivered at club level.

Gabi

A Marca column this year identified two potential successors to Simeone, two former players who are "pure Atletico Madrid". Fernando Torres is one; Gabi is the other.

Madrid-born Gabi epitomised Simeone's side with his dogged approach, having been selected as captain by the coach he played alongside in his first spell at the club.

"We weren't the best technically, but we were the best in terms of our belief," Gabi reflected of an Atleti stint that included six major honours – a description that fits both iconic player and team.

Marcos Llorente

Probably the most surprising choice in this XI, Llorente has undoubtedly proven himself an invaluable asset to Simeone since his move across the city in 2019.

Nominally a holding midfielder, the Spain international has been deployed to great effect in a more attacking role, not least in scoring twice at Anfield to knock Liverpool out of the 2019-20 Champions League.

Llorente has also filled in at full-back, that versatility earning him a starting spot on the right-hand side of Luis Enrique's line-up at Euro 2020. There are few players more accomplished at adopting different roles in Simeone's demanding set-up.

Antoine Griezmann

His 'Decision' about staying at Atletico in 2018 – and then promptly signing for Barcelona anyway a year later – upset plenty of Atletico fans, but there is little doubt about Griezmann's contribution to Simeone's success.

Griezmann has scored 140 goals and provided 148 assists for Atletico; since Simeone took charge, the next highest on the list for direct goal involvements is Koke on 137. And Griezmann was not even an Atletico player for the first two and a half years of the Cholo era.

The France international has twice come third in the Ballon d'Or standings while playing for Atleti, in 2016 and then 2018. Had it not been for a costly penalty miss in the Champions League final five years ago, he could well have got his hands on the prize.

Diego Costa

Fiery and formidable, Costa was the archetypal Simeone striker, and a player at the heart of one of the club's greatest modern seasons.

Initially a back-up to Sergio Aguero and Diego Forlan, and having battled a knee injury in 2011, Costa became an established player in the side in 2012-13, scoring in the Copa del Rey final win over Real Madrid.

Then, in 2013-14, he scored 27 LaLiga goals as Atleti claimed an incredible title triumph, and a further eight in nine games to propel them to the Champions League final. Simeone's attempt to rush him back from a hamstring injury for that game backfired, though: he lasted eight minutes of the match, which Atleti lost 4-1 after extra time.

Radamel Falcao

Described by Marca in 2012 as "the best signing of the 21st century", Radamel Falcao enjoyed two explosive seasons in Madrid as he cemented his reputation as the world's most feared number nine.

A club-record €40m signing in August 2011, the Colombia striker scored 36 goals in his debut season, including 12 in Atleti's victorious Europa League run – a competition he won the season before with Porto.

He started 2012-13 with consecutive hat-tricks, including against Chelsea in the UEFA Super Cup, ending the season with 34 goals in all competitions. He also set up Diego Costa to score as Atleti beat Real Madrid in the Copa del Rey final.

Milwaukee Bucks head coach Mike Budenholzer praised Khris Middleton after returning from injury with 23 points and six assists in Wednesday's 126-106 win over the Houston Rockets.

Middleton had missed the Bucks' past three games after a knee hyperextension but helped the reigning champions snap a two-game skid.

The Bucks had been missing Middleton along with reigning NBA Finals MVP Giannis Antetokounmpo over their past three games, with the Greek star entering the league's health and safety protocols last week.

"I thought [Middleton] had a good bounce in practice yesterday," Budenholzer told reporters. "I think he's excited to be back and playing and healthy.

"I thought he gives us some confidence. I thought he had a good pop tonight."

The Bucks had beaten the Indiana Pacers 114-99 without the pair before losses to the New Orleans Pelicans and Cleveland Cavaliers.

Jrue Holiday played a key role alongside Middleton in ending their run of defeats with 24 points, 10 assists and four rebounds.

Eight of Middleton's 23 points came from the stripe, as he showed intent to get into the paint in Antetokounmpo's absence.

"I think he felt good and he thought that's where he could be most effective," Budenholzer said. "We need some guys to get to the paint. I thought he did that.

"The free throws are indicative of that. It's not his norm but we need a little bit of that. It's good for him to get to the line and get those easy ones."

The Bucks will need to front up again on Thursday with a back-to-back against the Dallas Mavericks with Budenholzer stating he expects Middleton to play after only being used for 28 minutes against the Rockets.

"We're expecting him to be able to play," the Bucks head coach said. "We'll see how he responds tonight. We probably had a bit more in the bank tonight if we needed it."

Jrue Holiday and Khris Middleton rose in the absence of Giannis Antetokounmpo as the Milwaukee Bucks defeated the Houston Rockets 126-106 on Wednesday.

The reigning champions were without Antetokounmpo for the fourth straight game after he entered the NBA's health and safety protocols last week.

The Bucks had lost their last two without their Greek star but Holiday finished with 24 points, 10 assists and four rebounds, while Middleton added 23 points and six assists on his return from a knee injury.

Young small forward Jordan Nwora hit four triples in his 18-point haul, while center Christian Wood had a double-double for the Rockets with 20 points and 11 rebounds.

The win improves the Bucks to a 20-13 record and third spot in the Eastern Conference.

Brown shines for Celtics

Jaylen Brown scored 16 first-quarter points to finish with 34 for the game including five three-pointers as the Boston Celtics got past the Cleveland Cavaliers 111-101. Darius Garland had 28 points and six assists for the Cavs.

Paul George recorded five steals along with 17 points and six assists as the Los Angeles Clippers finished strong to beat the Sacramento Kings 105-89.

The depleted Atlanta Hawks went down 104-98 to the Orlando Magic, despite Cam Reddish's season-high 34 points.

Jokic silenced by the Thunder

Reigning MVP Nikola Jokic had a rare quiet night with only 13 points, seven rebounds and three assists as well as three turnovers as the Denver Nuggets went down 108-94 to the Oklahoma City Thunder. Shai Gilgeous-Alexander (27 points, 11 rebounds, 12 assists) had a second career triple-double for OKC.