Toto Wolff conceded Mercedes can have "no complaints" if the team fails to improve and Lewis Hamilton seeks an exit.

The seven-time world champion was unable to compete with Max Verstappen for the title last season and a bid for the crown this year appears unlikely.

Mercedes remain behind Red Bull and Ferrari with their cars for the 2023 season and have also fallen behind Aston Martin, with Hamilton finishing fifth in the opening race in Bahrain last time out.

Hamilton remains tied with Michael Schumacher for the most all-time titles in Formula One and Wolff would not be angry at the Briton for walking away if Mercedes continue to fail to provide him with a car with which he could win an unprecedented eighth championship.

"If Lewis wants to win another championship, he needs to make sure he has the car," he said.

"And if we cannot demonstrate that we are able to give him a car in the next couple of years then he will need to look everywhere.

"I don't think he is doing it at this stage, but I will have no complaints if that happens in a year or two."

However, Wolff does not expect Hamilton to jump at an exit and is confident he will sign a new deal, with his current contract expiring at the end of the season.

"I am absolutely confident. We are talking when we want to do it, and how, but we just need to change some terms and the dates basically," he added.

"Lewis is at the stage of his career where we trust each other, we have formed a great bond and we have no reason to doubt each other even though it is a difficult spell.

"It will be so nice when we come out of the valley of tears and return to solid performances."

Ireland can make it a glorious farewell to the Six Nations for record-chasing captain Johnny Sexton as they chase a Grand Slam on Saturday, with England their visitors.

It will be Ireland's title and a clean sweep of wins if they get the better of Steve Borthwick's team at the Aviva Stadium, while Sexton's next points will make him the leading scorer in championship history. He stands level for now with former team-mate Ronan O'Gara on 557 points.

Celebrations could already be in full swing in Dublin before kick-off in the unlikely event of Wales upsetting France in Paris earlier in the day.

France are the only team who can deny Ireland Six Nations glory now, trailing by four points going into the final round of matches.

Bonus points could yet be a factor in the final reckoning, but Ireland will be optimistic they can take that out of the equation by getting the better of an England side who were thrashed last week by Les Bleus.

Scotland face Italy in the day's opening game, before attention turns to the race for the trophy.

Here, Stats Perform runs down key aspects to look at in the three games, with the help of some standout Opta data.

FRANCE v WALES

FORM

Fabien Galthie's France team were so impressive at Twickenham last week they brought a tear to the coach's eye. That 53-10 drubbing in London showed France at their best, and they have won each of their last three Six Nations matches against Wales.

The tide has turned in the rivalry, given France had lost seven of the previous eight battles between the sides in the competition. After last year's Grand Slam, France will believe they can ramp up pressure on Ireland by getting the win at the Stade de France, having won nine of their last 10 Six Nations home matches, including each of the last four.

Wales stopped a six-game run of defeats in the Six Nations by beating Italy 29-17 last time out, to the relief of coach Warren Gatland. It was their longest run without a Six Nations victory since a seven-game sequence in 2006 and 2007, when they lost six and drew one.

There are areas where Wales are still doing well. For instance, they have conceded the joint-fewest turnovers of any side in this year's Six Nations (44, level with Ireland), and only Ireland (30) have won more turnovers than Wales (23). However, it would be a surprise if France do not ramp up the pressure on Ireland with a comfortable win and perhaps a bonus point into the bargain.

ONES TO WATCH

France will look to wings Damian Penaud and Ethan Dumortier to trouble Wales. Five players in this year's Six Nations have a 50 per cent or better tackle evasion rate among those who have faced 20 or more attempted tackles, and Penaud (79 per cent) and Dumortier (51 per cent) are among them.

For Wales, Taulupe Faletau will win his 100th cap and become the eighth man to reach that landmark for the team. Veterans George North and Alun Wyn Jones are among those coming into the starting XV, with Gatland giving the old-stagers a chance to potentially sign off their Six Nations careers in style.

IRELAND v ENGLAND

FORM

Ireland have won their last two Six Nations clashes with England, scoring exactly 32 points in each of those games, and the men in green have bagged 13 wins from their last 23 encounters with this weekend's opponents.

After finishing strongly last year, Ireland are on a seven-game winning run in the Six Nations, and an eighth win in a row would be a record for the team.

That would be cause for celebration alongside the Grand Slam, which would be a third for Ireland in the Six Nations era after 2009 and 2018 clean sweeps. They are chasing a fifth Six Nations title in all, and a seventh Triple Crown in this six-team era.

England's defeat to France last time out was their heaviest ever in the championship, so they have recalled Owen Farrell after dropping the captain, as coach Borthwick looks for a major response.

This game could yet be tight. Ireland (37) and England (34) have conceded the fewest penalties in this year's Six Nations, and they have achieved the highest share of territory per game (England – 60 per cent, Ireland – 59 per cent). Something has to give.

ONES TO WATCH

Sexton scored seven points against Scotland last weekend to move level with O'Gara, so his first kick at goal on Saturday will be a big moment. The record has been in his sights since the start of his final Six Nations, and the 37-year-old should clinch it on home soil.

Dan Cole is poised to win his 100th Test cap for England. He starts among the replacements, ready to become just the fourth player to reach a century for the England men’s team, after Jason Leonard, Ben Youngs and captain Farrell.

SCOTLAND v ITALY

FORM

The days of this fixture being a wooden spoon decider are gone for now, with Scotland much improved in recent years. Italy, too, are a stronger side than they have been for a good while, so they will be frustrated to have lost four from four so far.

Scotland have won each of their last seven Six Nations matches against Italy, their longest winning run against any nation in the championship. Their last Six Nations loss to the Azzurri was a 22-19 setback at Murrayfield in 2015, which was Italy's seventh win over the Scots in the championship. Italy have had just six wins against all other teams in the championship combined.

Italy's recent record in the Six Nations is truly dire, losing 40 of their last 41 games, with the exception among those defeats coming on the final weekend of last year's championship, when they won 22-21 in Wales.

ONES TO WATCH

Scotland's Matt Fagerson has made the most tackles of any player in the 2023 championship (70), while team-mates Jonny Gray (37), Jack Dempsey (32) and Luke Crosbie (32) are the only players to have made 30-plus tackles without missing one. Fagerson, Gray and Dempsey feature this weekend. Their prowess could be key as Scotland look to cope without injured backs Finn Russell and Stuart Hogg.

Italy's Juan Ignacio Brex and Paolo Garbisi are two of three players to have provided a championship-high six break assist passes in this year's championship, matching Ireland's Mack Hansen.

Sergio Perez has taken new power unit components ahead of the Saudi Arabian Grand Prix.

The Red Bull driver has taken a new energy store (ES) and control electronics (CE) for the second race of the 2023 Formula One season.

No penalty will be issued for the Mexican driver, though he finds himself in a tricky situation for the remainder of the campaign as only two ES changes are allowed over the course of the season, while three CE's are permitted.

Perez is now in a similar situation to that of Ferrari's Charles Leclerc, who was forced into an ES change ahead of the season opener in Bahrain and has taken another unit for this weekend – resulting in a 10-place grid penalty.

Leclerc, alongside team-mate Carlos Sainz and McLaren's Lando Norris, has also taken a second internal combustion engine (ICE) for Saudi Arabia, with three permitted during a season, while both Leclerc and Norris have taken an additional MGU-H.

Norris has seen further changes in the form of a new turbocharger, MGU-K and exhaust system for the weekend in Saudi Arabia.

Max Verstappen leads the championship standings ahead of team-mate Perez after a Red Bull one-two in Bahrain, with Aston Martin's Fernando Alonso third.

Brandon Miller was held scoreless by Texas A&M Corpus Christi in the first round of the NCAA Tournament, but Alabama's beaten opponents do not expect that to happen again.

Miller is projected to go in the top three of the NBA Draft, making him the top prospect playing in March Madness, with Victor Wembanyama in France and Scoot Henderson in the NBA G League.

But the Crimson Tide freshman failed to score a point in Alabama's 96-75 win on Thursday, having averaged 19.6 points per game this season up to that point, failing to reach double figures just once.

Miller is dealing with a groin injury and played only 19 minutes, although he still took and missed five field goals.

Texas A&M Corpus Christi coach Steve Lutz, who had previously suggested Miller would need to fall ill to be stopped, does not expect that performance to be repeated as the tournament continues.

"Maybe he had an off night. I really don't know," Lutz said. "I know that I watched him on tape and he's really, really good.

"So for us to have collectively done the job that we did on him defensively is a feather our cap, but I wouldn't expect that to happen again, to be honest with you."

Alabama coach Nate Oats added: "It was nice to be able to put up 96 without Brandon scoring a point.

"We were trying to play him limited minutes. We were able to keep him under 20. Hopefully, he can get a lot of rehab today and tomorrow and look a lot more like himself on Saturday."

Miller, for his part, was keen not to blame his injury.

"If that's what you want to call it, we can go with that," he replied when asked if it was the reason for his limited minutes.

Amid the excitement around his involvement in the tournament, Miller has also been the subject of significant attention for off-court matters.

Former team-mate Darius Miles was charged with capital murder following the shooting death of a 23-year-old woman near the Alabama campus, and police are said to believe Miller supplied the firearm.

Miller has not been charged, nor is he considered a suspect, and according to the university, he has been cooperating with the police as a witness.

The forward has attended the tournament with security detail, with Oats revealing he had been the target of threats before the team's first game.

"If you guys saw some of what I've seen sent his way, I think you would understand why that's the case," the coach said of Miller's security.

Miller added: "It doesn't bother me. I send it [the threats] to the right people, and then they handle it."

New York Mets pitcher Edwin Diaz is expected to miss the entire MLB season after suffering a serious knee injury while celebrating a Puerto Rico win in the World Baseball Classic.

Diaz left the field in a wheelchair after injuring his right knee while celebrating Wednesday's win over the Dominican Republic, with his team-mates visibly upset by the incident.

On Thursday, the Mets revealed Diaz – who penned a five-year, $102million contract with the team in the offseason – had undergone surgery after sustaining a complete patellar tendon tear.

"Edwin Diaz underwent successful repair of the patellar tendon in his right knee today," read an update from the team. "He is expected to begin a formal rehab program in about a week."

Earlier on Thursday, Mets general manager Billy Eppler suggested the closer – widely considered to be the best in the game – could be sidelined for around eight months, a timeline which would rule him out for the entire 2023 season.

Eppler noted some athletes have returned from similar injuries within a six-month timeframe, but added such cases were "more the exception than the rule".

Diaz took to social media to update his fans after the surgery, writing on Twitter: "To all my beloved fans, especially the Mets fans, I want to let you know that I am doing well and healing. 

"I feel blessed and grateful for your support with messages and prayers, thank you very much!  I can't wait to see you guys in NY again and play those trumpets."

Ben Simmons has had "zero discussions" with the Brooklyn Nets about bringing his season to an end, says head coach Jacque Vaughn.

While remaining vague about the specific issue keeping Simmons sidelined, the 26-year-old has been contending with back and knee problems.

Speaking prior to the Nets' 101-96 loss to the Sacramento Kings on Thursday, Vaughn confirmed he expects Simmons – who last featured on February 15 – to be back on court before the season ends.

"Definitely operating under that belief," Vaughn replied when asked if Simmons will play again this campaign.

"There's zero discussions about him not playing. We expect him to be back, waiting for him to be back."

It has been a frustrating time in Brooklyn for Simmons, who did not play at all last season after moving to the Nets in the huge trade that saw James Harden switch to the Philadelphia 76ers.

He sat out the first half of the season while he was waiting to be traded, then missed the rest of the campaign with a back issue.

While he has played 42 games this term, Simmons is averaging career-lows for points (6.9), rebounds (6.3), assists (6.1) and steals (1.3).

Vaughn added there has been no setback to his recovery.

"No setbacks. He's progressing. So, great to see him," he added.

"He's doing some work on court right now, so as more updates come, I'll definitely give them to you guys, but good to see him back on court getting some work in."

The Nets' setback to the Kings leaves them sixth in the Eastern Conference, two wins back of rivals the New York Knicks.

Forward Mikal Bridges was pretty frank about why the Nets failed to get the job done.

"They just played harder," Bridges said. "Get stops and they were just scoring. Getting to the line. But, yeah they just played harder than us."

The Sacramento Kings can be "dangerous" after ensuring their first winning season since 2005-06 with a 101-96 triumph over the Brooklyn Nets, believes coach Mike Brown.

Domantas Sabonis starred with 24 points, 21 rebounds, five assists and four blocks as the Kings took control of the Western Conference's second seed with Thursday's win.

No team in the NBA has a better record over their last 10 games than the Kings' 8-2 mark, and their 42nd win of the campaign ensures they will snap a 17-year run without a winning season – an NBA record.

"It means a lot for the fans and the organisation," Brown said after the game. "Sacramento, it's a proud fan base and they don't get a lot of love around the nation or even in the state of California. 

"So to be able to pound their chest and be able to walk with their heads high and talk with their friends to have a little bit of bragging rights, it's great."

With the 42-27 Kings now 4.5 games behind the Denver Nuggets and 5.5 clear of the play-in tournament placings, Brown believes they should be aiming high.

"It's been pretty easy. The guys understand what my messaging has been all along, and they understand how passionate I am about it," Brown said. 

"I do feel that this group believes in themselves. Not just because I'm telling them they're good, but because they've gone out and proven it time after time after time, whether it's individually in certain situations, or collectively as a team.

"When you have a team that believes, they can be dangerous. When you've got a collected team that believes, that can be a very dangerous team. That's what our group is right now."

The Kings continue their road stretch against the Washington Wizards on Saturday and the Utah Jazz on Monday, before returning home to face the Boston Celtics.

Lonzo Ball will be out "indefinitely" as he prepares to undergo a third surgery on his left knee in 14 months, with the Chicago Bulls reportedly concerned about his chances of resuming his career.

Ball has not played since January 2022, having suffered a knee injury that has already required two operations.

The guard – who is almost two seasons into a four-year, $80million deal in Chicago – was ruled out for the remainder of the 2022-23 campaign last month, stunting hopes of a return this term.

On Thursday, a report from ESPN suggested his upcoming cartilage transplant could rule him out for the entirety of next season, while his team simply said he would be sidelined "indefinitely".

The report added there is growing pressure for Ball's next surgery to offer him a clear pathway towards an eventual return to the court, which may not be assured.

Speaking to the Bulls' website, Ball said: "My main focus has been on returning to the court and getting to a place where I can re-join my team-mates. 

"This has been a frustrating process, but I'm confident these next steps are the best path forward. 

"The support of my family, friends, fans and medical staff throughout my recovery is what keeps me moving forward. I can't wait to get back to what I love doing most – playing basketball."

Ball averaged 13 points, 5.4 rebounds and 5.1 assists across 35 games in his first season with the Bulls, who have struggled to a 31-37 record in his absence this campaign, leaving them 12th in the Eastern Conference.

The first massive upset of the NCAA Tournament arrived on Thursday as the 15-seed Princeton Tigers knocked out the two-seed Arizona Wildcats 59-55.

Incredibly, the undersized Tigers won despite shooting only four-of-25 (16 per cent) from three-point range, getting it done on the defensive end as they held Arizona to 24 points in the second half.

Despite the loss, it was still a strong showing from the game's top NBA prospect as Arizona's six-foot-11 Lithuanian junior Azuolas Tubelis posted 22 points (nine-of-20 shooting), five rebounds, four steals and a block.

In a full-circle moment, Princeton head coach Mitch Henderson was drenched during post-game celebrations. The victory came 27 years after he played in the Tigers' last great March Madness upset, knocking off four-seed UCLA in the 1996 tournament.

But Arizona were not the only big favourite to fall, as the four-seed Virginia Cavaliers were stunned late in a 68-67 defeat at the hands of the 13-seed Furman Paladins.

Virginia led by four with just 12 seconds remaining, but after two Furman free throws, fifth-year senior Kihei Clark inexplicably tried to launch a full-court pass while being trapped in the backcourt. The pass was intercepted, allowing Garrett Hein to set up J.P. Pegues for the game-winning three with two seconds on the clock.

Things were less dramatic for the one seeds in action, as freshman star and likely NBA lottery pick Gradey Dick led the Kansas Jayhawks to a 96-68 drubbing of the Howard Bison.

Dick, 19, had 19 points (seven-of-13 shooting) with 11 rebounds, five assists and three steals as Kansas kept their foot on the pedal right to the end, using the blowout as an opportunity for some live practice against competitive opposition.

It was a different strategy for the Alabama Crimson Tide, with none of their starters playing more than 21 minutes, including top-three NBA draft hopeful Brandon Miller as he finished scoreless on five shots.

The Houston Cougars completed the one seed clean sweep as they were made to work for a 63-52 win against the Northern Kentucky Norse, with top prospect Jarace Walker putting together 16 points (six-of-eight shooting), six rebounds and two blocks.

World number two Carlos Alcaraz is through to the Indian Wells Open semi-final after defeating 11th seed Felix Auger-Aliassime 6-4 6-4 on Thursday.

Alcaraz, 19, continued his terrific start to 2023, now boasting 12 wins from his first 13 matches of the year after winning the Argentina Open and reaching the Rio Open final.

But despite the Spaniard's status as the game's top young talent, he came into the contest winless in his three previous meetings against Canada's Auger-Aliassime.

What separated the two this time around was Alcaraz's ability to keep the ball in play. He produced 26 winners with only eight unforced errors, and while Auger-Aliassime was not much worse (24 winners, 13 unforced errors), he committed six double faults.

He is now one match away from reaching the third Masters 1000 final of his career, having won both the Miami Open and the Madrid Open this past season.

Meeting him in the semi-final will be Italy's Jannik Sinner after he prevailed 6-4 4-6 6-4 against hometown hero Taylor Fritz.

In the seesawing contest, Sinner narrowly edged the total point count 94-86 – with both committing exactly 17 unforced errors – but the Italian created nine break point chances compared to Fritz's three.

Since the beginning of the Australian Open, Sinner sports a 14-2 record, with the only losses in that span coming against world number three Stefanos Tsitsipas and world number six Daniil Medvedev.

It will be the sixth meeting between Sinner and Alcaraz, with the Spanish teen taking in a 3-2 edge after a five-set thriller at the US Open.

Reigning back-to-back MVP Nikola Jokic prioritised his scoring to help the Denver Nuggets snap their four-game losing streak on Thursday.

Jokic posted a game-high 30 points to go with 10 rebounds and nine assists as his Nuggets came back from an early deficit to defeat the Detroit Pistons 119-100 on the road.

Denver trailed by six at half-time, but went on to outscore the Pistons 61-36 the rest of the way, and Jokic was leaving nothing to chance.

Between December 30 and March 10, Jokic had only one game where he made at least 14 field goals. He has now reached that figure in three of his past four outings, and over that span he has put up averages of 32.5 points, 12.3 rebounds and 9.5 assists to try and shake the Nuggets out of their mini-slump.

A big reason for their recent dip in form has been the play of second-star Jamal Murray, who came into the contest after shooting 19-of-58 (32.8 per cent) over his past three. He was not at his scoring best against the Pistons, but he was a worthy contributor, chipping in 19 points (seven-of-15 shooting) with 10 assists and six rebounds.

On the other side, it was an eye-opening performance off the bench from rookie Jalen Duren, piling up 15 points (seven-of-10 shooting), 13 rebounds, four assists and three steals in his 27 minutes.

The victory improves Denver's Western Conference-leading record to 47-23, while the 16-55 Pistons own the league's worst record and the best odds at landing the number one draft pick.

Sabonis shines as Kings remain one of the league's hottest teams

Domantas Sabonis was the star of the show as his Sacramento Kings fought off the gritty Brooklyn Nets for a 101-96 road win.

No team in the NBA has a better record over their past 10 games than the Kings' 8-2 mark, and they were propelled Thursday by Sabonis' 24 points (eight-of-14 shooting), 21 rebounds, five assists and four blocks. In doing so, Sabonis broke Otis Thorpe's franchise record (1987-88 season) for the most rebounds in a single regular season (837).

Sacramento will be anxiously awaiting further news on starting wing Kevin Huerter after he left in the first quarter with a hamstring injury, but they have plenty of wiggle room after taking sole possession of the West's second seed.

At 42-27, the Kings are 4.5 games behind the Nuggets, and 5.5 games clear of the play-in tournament placings.

Bucks defense goes missing in Pacers upset

One of the best defenses in the league had no answers for the Indiana Pacers as the Milwaukee Bucks fell in a surprising 139-123 upset.

The Bucks looked on course to add to their league-best 50 wins after piling on 40 points in the first quarter, but they undid all their good work by allowing the Pacers to score 84 in the second half.

Eight Pacers scored double-figures, led by Andrew Nembhard's 24 points on 10-of-21 shooting, while the highlight of the game came from Myles Turner's posterising dunk over Giannis Antetokounmpo.

Milwaukee (50-20) sit two games clear atop the East, with the Boston Celtics (48-22) their closest competitor in the race for the league's best record.