Andy Murray has admitted he is "surprised" to still be able to compete against top-level opponents given his injury history.

The 2012 US Open champion exited this year's competition following a third-round defeat to 13th seed Matteo Berrettini, though he did take the tie to four sets.

Having lost the first two sets, Murray fought back to win the tiebreaker in the third but his valiant attempts were ended by the Italian in the fourth, who sets up a round of 16 clash against Alejandro Davidovich Fokina.

Despite the loss, Murray was pleased with his performance at the tournament and encouraged by his ability to still go toe-to-toe with the likes of Berrettini.

"I've got a metal hip. It's not easy playing with that. It's really difficult. I'm surprised I'm still able to compete with guys that are right up at the top of the game," he said after the match.

"Matches like this, you know, I'm really proud that I have worked myself into a position where I'm able to do that. I'm really disappointed that I didn't get over the line today. 

"But I get reminded like 'this is the first time you've made the third round here since 2016'. It's been six years. It's been a difficult six years for me. It's been really hard.

"Although it's the first time I've only made the third round here, I'm really proud of that effort that I put in to get myself back into these positions. So, I'm hoping that in the future I can go further, but considering, I did all right."

Murray went on to explain how things feel differently for him on the court, identifying he cannot move in the same way Rafael Nadal and Novak Djokovic still can.

"A lot of the things feel the same, but obviously I'm just not quite capable of the sort of movement and physicality that I was five, six years ago. I mean, that's pretty obvious. You know, I shouldn't expect to be," he said.

"I think if you watch Rafa and Novak moving around the court now who are similar age, I think they're moving pretty similar to how they were five, six years ago, whereas for me there's obviously been a bit of a drop-off there.

"That can affect you in terms of how you have to play the points. Maybe you just don't track as many balls down as before. Maybe the reach isn't just quite as much as it was.

"But in terms of the shots and everything, there is nothing that is stopping me from hitting the same shots as I did before."

A board of university presidents voted unanimously on Friday to expand the College Football Playoff to 12 teams, possibly as early as the 2024 season.

An announcement on the College Football Playoff website stated the new format will begin in the 2026 campaign.

It was added, though, that the College Football Management Committee have been tasked with "assessing the possibility of beginning the expanded playoff in either the 2024 or 2025 regular season."

The Board of Managers – comprised of university presidents representing the 10 FBS conferences, plus Notre Dame – is hoping to implement expansion as soon as possible.

When Friday's meeting was announced, CBS Sports reported that universities had grown impatient with the commissioners' hesitancy to adopt a seemingly inevitable expansion and worried about missing revenue by keeping the playoff at four teams.

Media rights for a 12-team playoff could be worth double their current value, up to $1.2billion annually, CBS Sports also reported.

Friday's vote was the culmination of a process dating back to last June when the board of managers first heard a proposal for a 12-team playoff.

The confirmation on Friday laid out the new format, which will include "six conference champions ranked highest by the selection committee (no minimum ranking requirement), plus the six highest-ranked teams not included among the six highest-ranked conference champions."

It was also revealed the "four highest-ranked conference champions will be seeded one through four and each will receive a first-round bye.

"The other eight teams will play in the first round with the higher seeds hosting the lower seeds either on campus or at other sites designated by the higher-seeded institution."

President of Mississippi State and the chairman of the CFP Board of Managers, Mark Keenum, said: "This is an historic and exciting day for college football.

"More teams, more participation and more excitement are good for our fans, alumni, and student-athletes. I'm grateful to my colleagues on the board for their thoughtful approach to this issue and for their resolve to get expansion across the goal line and for the extensive work of the Management Committee that made this decision possible."

Among the crucial next steps include deciding who broadcasts the extra games.

While ESPN has television rights for the semi-final and championship games through 2026, first and second round games could be broadcast by multiple networks.

Ons Jabeur has now made it to the second week in all four grand slams after her win over Shelby Rogers at the US Open.

Jabeur, the fifth seed at Flushing Meadows, had previously fallen short of making the second week in the season's final grand slam, having reached the third round in three successive years between 2019 and 2021.

But the Tunisian world number five ended that wait with a 4-6 6-4 6-3 defeat of American Rogers.

Jabeur reached the final at Wimbledon this year, her first appearance in a major showpiece match, but lost to Elena Rybakina.

She has made it to the fourth round of the grand slams six times, having managed quarter-final runs at Wimbledon (2021) and the Australian Open (2020).

Another US Open fourth-round debutant awaits Jabeur in the form of Veronika Kudermetova, who despatched Dalma Galfi 6-2 6-0. 

Kudermetova's victory took just 46 minutes, making it the shortest match of the tournament.

Boston Celtics forward Danilo Gallinari could miss most or all of the upcoming NBA season, according to reports, after tearing the anterior cruciate ligament in his left knee last week.

Gallinari was injured playing for Italy in a FIBA World Cup qualifying game against Georgia on Saturday. The Italian national team later announced the veteran sharpshooter sustained a torn meniscus, without providing further details.

ESPN reported on Friday that Gallinari was hopeful of returning late in the 2022-23 season. Typical recovery time for an ACL tear is anywhere from six to 12 months.

The Celtics confirmed on Twitter on Friday: "Danilo Gallinari has been diagnosed with a torn ACL in his left knee. Gallinari sustained the injury while playing for his home nation of Italy in a FIBA World Cup qualifier against Georgia on August 27. Further updates will be provided as appropriate."

Gallinari previously tore the ACL in the same knee while playing for the Denver Nuggets late in the 2012-13 season. That injury required an additional surgery that sidelined him for the entire 2013-14 campaign.

The 34-year-old signed a two-year, $13.3million contract with Boston in July, just days after being waived by San Antonio. Gallinari was acquired by the Spurs from Atlanta on June 30 as part of the trade that sent All-Star point guard Dejounte Murray to the Hawks.

Gallinari, who averaged 11.7 points and 4.7 rebounds in 66 games with the Hawks last season, was being counted on to provide bench scoring for a Celtics team coming off an appearance in the NBA Finals.

He also took to Twitter on Friday to post a statement, saying: "This has been a tough week for me as I have learned the extent of my injury. This game means everything to me and not being able to be on the court with my Celtics teammates hurts.

"I plan to give everything I can to the Celtics organisation and my teammates as we hunt for a title. I will work tirelessly with the Celtics staff to return to the court as soon as I can and I appreciate the unwavering support from the fans, my teammates, and the entire NBA family."

The 13-year veteran is one of only six players to average at least 15 points per game and shoot 40 per cent or better from three-point range over the last four seasons (min. 100 games), along with 2022 All-Stars Stephen Curry and Karl Anthony-Towns, Kyrie Irving, T.J. Warren and Bojan Bogdanovic.

Remco Evenepoel kept his Vuelta a Espana lead firmly intact despite Primoz Roglic's efforts, as Mads Pedersen sprinted to victory on Friday.

Evenepoel had suffered a fall on Thursday but kept safely in the peloton in stage 13 to ensure history hunting Roglic – who crossed over the line in ninth on the uphill finish in Montilla – did not make a dent into his general classification lead.

A bunch sprint for the line was won by Pedersen, who recorded the first Vuelta stage win of his career, following on from a maiden individual success at the Tour de France earlier this year.

Pedersen, who already held the green points jersey, had to react sharply to an attack from Pascal Ackermann in the last 500 metres, but the Dane had too much power and had time to celebrate as he crossed.

Along with Kaden Groves and Bryan Coquard, Pedersen had previously reeled in a three-man breakaway of Julius van den Berg, Ander Okamika and Joan Bou.

Coquard had enough to overtake Ackermann, who just about held onto third place ahead of Fred Wright.

"It's super nice," Trek-Segafredo rider Pedersen told reporters after ensuring a Dane has won at least one stage at La Vuelta for four consecutive editions of the Grand Tour.

"We came here for a stage win and now we have won. We'll keep fighting to get one more.

"It's nice with a comfortable lead in the points jersey. We keep fighting for the stages and we'll see how it goes."

Evenepoel, meanwhile, has now held the red jersey for eight successive stages, the longest such streak for a Belgian at La Vuelta since Ferdi Van den Haute in 1978 (10 stages).

COVID not stopping Ayuso

A raft of positive COVID-19 cases have disrupted this year's race, but one rider who is able to carry on is Juan Ayuso.

The UAE Team Emirates youngster - who sits an impressive fifth returned a positive test result ahead of Friday's stage, and team doctor Adrian Rotunno confirmed the 19-year-old is fine to continue.

"As per our internal protocols Juan Ayuso was tested for COVID-19 and returned a positive result this morning. He is asymptomatic and analysing his PCR found he had a very low risk of infectivity, similar to cases such as we saw at this year's Tour de France," Rotunno confirmed to the media.

STAGE RESULT

1. Mads Pedersen (Trek-Segafredo) 3:46:01
2. Bryan Coquard (Cofidis) same time
3. Pascal Ackermann (UAE Team Emirates) same time
4. Fred Wright (Bahrain Victorious) same time
5. Danny van Poppel (BORA-Hansgrohe) same time

CLASSIFICATION STANDINGS

General Classification

1. Remco Evenepoel (Quick-Step Alpha Vinyl) 48:11:10
2. Primoz Roglic (Jumbo-Visma) +2:41
3. Enric Mas (Movistar) +3:03

Points Classification

1. Mads Pedersen (Trek-Segafredo) 247
2. Marc Soler (UAE Team Emirates) 96
3. Fred Wright (Bahrain Victorious) 96

King of the Mountains

1. Jay Vine (Alpecin-Deceuninck) 40
2. Robert Stannard (Alpecin-Deceuninck) 21
3. Marc Soler (UAE Team Emirates) 20

Tyson Fury has issued a fresh challenge to Oleksandr Usyk, responding to the latest comments from the Ukrainian where he referred to the WBC heavyweight champion as a 'crazy guy'.

Usyk successfully defended his belts against Anthony Joshua in last month's rematch, clearing the way for boxing fans to secure the unification fight they have long been waiting for on the heavyweight stage.

Fury had claimed he would retire following his win against Dillian Whyte in April but has since made it clear he is open to returning to the ring for a unification bout against Usyk.

Former middleweight fighter Usyk spoke about the prospect of facing off against Fury earlier this week, stating: "I want the WBC title. It was captured by the gypsies, some kind of king.

"We don't know what Tyson has in his head. Everyone knows that this is a very crazy guy. I would really like this fight to happen next year."

That sparked a fiery response from Fury, who directed jibes at Usyk's former middleweight status and named three prospective dates for a potential bout.

"Usyk, middleweight, you say you want the WBC and it's held by gypsies, it is held by gypsies and it's held by the gypsy king, it's held tightly," he said in a social media video.

"All rounds lead to a seven-foot behemoth who will absolutely destroy you, middleweight, you will get smashed to bits.

"You said you wanted to fight me after you beat the bodybuilder [Joshua], called me out on television, and now you're being a little b****, saying you've got injuries.

"You ain't got no injuries, you had a sparring contest. Get out and fight in December, you let your mouth go, now let's see if you can back it up.

"Doesn't matter if it's December, April or August next year, the outcome will be the same, I will obliterate you. I am a seven foot, 20 stone behemoth and I will destroy you. Find your balls, come see me."

The FIA's Contract Recognition Board has ruled in favour of McLaren on Oscar Piastri, allowing the Australian to take a seat with the team on the grid from 2023.

Alpine and McLaren were locked in a battle over the services of the 21-year-old, who was a member of Alpine's junior programme and held reserve status with the team this season.

Fernando Alonso's announcement that he would be leaving Alpine for Aston Martin sparked a domino effect in the market, with Alpine then announcing Piastri would take a seat next year.

However, Piastri then took to social media to deny he had agreed to race for the team, with it widely understood he had instead reached an agreement with McLaren - who confirmed Daniel Ricciardo would leave at the end of the season.

Both teams believed they had a valid contract for Piastri, with the case then being heard by the CRB this week - who have now ruled in favour of McLaren.

"The only Contract to be recognised by is the Contract between McLaren Racing Limited and Mr Piastri dated 4 July 2022. Mr Piastri is entitled to drive for McLaren Racing for the 2023 and 2024 seasons," the CRB said.

McLaren swiftly announced Piastri as their 2023 driver alongside Lando Norris and Piastri spoke of his delight at joining the team.

"I'm extremely excited to be making my F1 debut with such a prestigious team as McLaren and I'm very grateful for the opportunity that’s been offered to me," he said.

"The team has a long tradition of giving young talent a chance, and I'm looking forward to working hard alongside Lando to push the team towards the front of the grid. I'm focused on preparing for my F1 debut in 2023 and starting my F1 career in papaya."

Alpine will now be on the hunt for a driver to sit alongside Esteban Ocon next season, with widespread reports Pierre Gasly will join from AlphaTauri, ending his long association with Red Bull, and the team said an announcement on their line-up would be made in due course.

"BWT Alpine F1 Team thanks the Contract Recognition Board (CRB) for convening on Monday and we acknowledge the decision they have made," they stated on Twitter.

"We consider the matter closed on our side and will announce our full 2023 driver line-up in due course. Our immediate focus is the Dutch Grand Prix and securing points in our fight for fourth in the Constructors' Championship."

Alpine is fourth in the Constructors' Championship on 115 points, 20 points ahead of McLaren.

The AFC West has been dominated by the Kansas City Chiefs in recent seasons, with six division titles in succession.

In fact, if the Chiefs can extend that streak to seven, they will tie each of the Denver Broncos, the Las Vegas Raiders and the Los Angeles Chargers on 15 division titles.

Unfortunately for those in Kansas City, their rivals appear especially determined to ensure this year is different.

No division has prompted as much intrigue during the offseason as the AFC West, which has appeared at the centre of numerous big trades as its pretenders attempt to become contenders.

So hard to split is the division that Stats Perform has not even attempted to try – instead explaining what needs to happen for each of these teams in turn to be successful...

Kansas City Chiefs

After topping the AFC West in six straight seasons, there are plenty of reasons to believe the Chiefs can be toppled in 2022: Patrick Mahomes is coming off perhaps the worst season of his career, Tyreek Hill is gone, and the competition in the division is intense.

Yet those are also three reasons why Mahomes will be determined to lead the Chiefs to another strong year.

One of the game's leading lights will hope the 2021 season, with its 3-4 start and hugely disappointing finish in the AFC Championship Game, does not live long in the memory, but his attempts to move on swiftly could easily be hampered by the departure of WR1 Hill to the Miami Dolphins.

However, tight end Travis Kelce – the career leader in Mahomes targets (540), completions (383) and passing yards (4,960) – remains in Kansas City, and the quarterback has the ability to make a partnership work with any receiver.

Mahomes just needs time, and that is what he can expect to get behind one of the best offensive lines in the game.

The Chiefs rebuilt their O-line last year, and they ranked third in the NFL in pass protection win percentage (80.16) in 2021. Crucially, that unit improved as the season went on; the six games in which Mahomes faced the most pressures were all before the Week 12 bye.

Mahomes' pass completion rate of 77.4 per cent when not pressured ranked second among QBs with 100 or more attempts last season; this dropped to 56.7 per cent when pressured – only marginally above the league average in such scenarios (56.6).

Widely considered the most talented passer of his generation, the Chiefs have focused on protecting Mahomes rather than worrying about who he is throwing to, and that should be a safe bet despite his postseason wobble.

Las Vegas Raiders

As one elite receiver leaves the AFC West in Hill, another arrives. Davante Adams has quit the Green Bay Packers to bring his star power to Vegas.

Since his rookie season, Adams ranks fifth in the NFL for catches (669), sixth for receiving yards (8,121) and second for receiving touchdowns (73), although he has spent his entire career playing with four-time MVP Aaron Rodgers.

Now, Adams will be paired with zero-time MVP Derek Carr, who threw for 23 TDs and 14 interceptions last year, ranking 24th in touchdown percentage (3.7). Rodgers, by comparison, threw for 37 scores and four picks, with his 7.0 TD percentage the best in the league.

Yet Carr will surely benefit from having Adams to throw to. He saw 25 passes dropped in 2021 – tied for the third-most in the NFL – and a solid completion percentage of 68.4 could have been better, as his expected completion percentage of 74.5 trailed only Mahomes (75.9).

Carr is clearly an accurate passer; he just needs a little help turning this talent into tangible rewards.

Adams is the ideal man to do that, with the duo teaming up previously for two years at Fresno State, in which time the receiver's 38 TDs led the FBS by some distance.

Last year, Adams – who dropped a career-low one pass, just 0.6 per cent of his targets – added 633 yards after the catch, fourth-most in the league, and led the way in recording a first down with 49.7 per cent of his targets.

He can have a transformative impact on a team who were already the Chiefs' nearest challengers in this division and will now be overseen by former New England Patriots offensive coordinator Josh McDaniels as coach.

Los Angeles Chargers

This division is so exciting not only because it contains four potentially great teams but because it contains four potentially great offenses.

For the Chargers, there are few doubts on that side of the ball. They have largely brought back the same offense that made Justin Herbert a star in 2021 with just the 14th 5,000-yard passing season in league history. Of course, the 17-game season helped in that regard, but only Tom Brady (5,316) outperformed Herbert (5,014) on the year.

As a result, the Chargers were fourth in the league in yards per game (390.2) and fifth in total points scored (747).

So, why did they miss out on the postseason?

Well, the Chargers had a bottom-10 defense in terms of yards per game (360.1), and only two teams allowed more points across the season (459). That Herbert-powered offense ranked 23rd in time spent on the field, with the defense giving them too much to do in too little time.

There are reasons to believe that will change this year, though, with the acquisitions of Khalil Mack and J.C. Jackson particularly notable for a team that ranked in the bottom half of the league for takeaways (21).

Only three players have had eight or more interceptions in a single season over the past two years; Jackson, one of those three, has done it twice.

No player has ever previously had eight or more picks in three straight seasons, but Jackson has shown no signs of slowing and could be exactly the type of superstar the Chargers need on defense to complement Herbert's efforts on offense and seize control of this division.

Denver Broncos

These might not be the four most talented quarterbacks in the NFL, but they may well be the four most motivated.

Russell Wilson undoubtedly has a point to prove after ending a 10-year stint with the Seattle Seahawks that went downhill fast in its final 18 months. In early MVP contention after a 5-0 start to the 2020 season, Wilson went 13-12 over the rest of his Seahawks career.

He last year missed the postseason for only the second time and, according to Seattle, pushed for a trade. "I didn't initiate it," was Wilson's reply. "It was definitely mutual."

Regardless, Wilson will find a very receptive audience in Denver, where Broncos fans were desperate to see an end to the QB merry-go-round that had them in a spin for six straight years after Peyton Manning's farewell Super Bowl 50 win. They have had 10 different starters under center since 2016, second only to Washington (11).

In that time outside the title picture, though, the Broncos have rebuilt the rest of the roster, waiting for the sort of QB-coach combo they now have in Wilson and former Packers OC Nathaniel Hackett.

Denver allowed the eighth-fewest yards per game last season (326.1) and the third-fewest points (322); on offense, a better QB than Teddy Bridgewater would have made more use of playing behind an O-line that ranked eighth in pass protection win percentage (78.64).

With personnel changes at the two most important positions, the Broncos can expect to be much, much better than 19th for yards per game (330.5) and joint-23rd for total points (335).

That improvement should take the Broncos from nowhere to somewhere, even in this AFC West.

Red Bull team principal Christian Horner is hopeful there will be no further issues for Max Verstappen after a gearbox failure in the first free practice session at Zandvoort.

The championship leader is seeking to win back-to-back races at his home Dutch Grand Prix this week but his preparations suffered a significant hit when he stopped in a plume of smoke on Friday.

Verstappen stated over team radio that it was a gearbox issue, leading to concerns ahead of Sunday's race, but Horner is hoping the reigning world champion would be able to participate in the second practice session.

"We lost drive once he took a shift from four to fifth, we need to get the car back, understand that and hopefully get it turned around quickly for the next session," he explained.

With Verstappen leading the championship battle by 93 points ahead of team-mate Sergio Perez, with Charles Leclerc a further five behind, the title race is widely considered to be wrapped up, but Horner warned there is still time for things to change.

"Still eight races to go including a sprint race. Anything can happen. We've just got to keep our heads down, keep doing what we've been doing and the championship tables will take care of themselves," he added.

"Spa was probably the most dominant win we've ever had, it's difficult to understand what was it, did they take a step back, did we take a step forward? Max was in a league of his own."

Sergio Garcia is adamant LIV Golf "is the future" for the sport as the PGA Tour fights to keep its stars out of the clutches of the lucrative Saudi-backed circuit.

It remains to be seen whether players signed up to the new series are kissing goodbye to playing the majors, which would be diminished by the absence of stars such as Garcia, Bryson DeChambeau, Dustin Johnson, Brooks Koepka and new defector Cameron Smith.

The PGA Tour has banned those players from its events for now, though they are still allowed to participate on the DP World Tour – previously known as the European Tour – whose sanctions have been put on hold until a hearing is heard early next year.

Ahead of this weekend's Boston leg of LIV Golf, Garcia told Stats Perform he had no regrets about committing to the controversial series, with the 42-year-old having been one of the first to sign up.

"Yeah, I love it. I think it's great. I think it's getting more and more momentum," the Spaniard said.

"I think that everyone is really enjoying the format and the way we're playing. We all believe that is the future of golf, keeping it fresher, even quicker and all the things that people are asking for. We're very excited about it."

There is a team element as well as individual honours at stake, while each event has so far been contested over 54 holes, rather than 72 as has long been the custom in the men's game. Players are joining on huge signing-on fees, while the level of tournament prize money is also proving appealing.

Saudi Arabia's often-criticised human rights record has led to accusations that LIV Golf is an attempt at 'sportswashing', looking to improve the reputation of a country by investing heavily in a glitzy event featuring widely admired international stars.

Garcia, the 2017 Masters champion, insists he has no problem with where the money behind the series originates.

"I think that a lot of people make business with Saudi Arabia and the government is fine. So there's nothing to do there," Garcia said.

"LIV Golf is international  Even this year, with just eight tournaments, we're playing some abroad. Next year coming up, there's going to be a lot more tournaments worldwide. So it definitely is [international]."

Paul Casey, an Englishman who won three PGA Tour titles and added 15 tournament wins on the European Tour, is another who has accepted a big cheque to join LIV Golf.

"I saw the first two events before my first event at Bedminster," Casey said.

He told Stats Perform he was impressed by "the energy", "the youngness of the crowd" and the "passion and excitement for everybody involved".

"This is like a start-up. This is something different," Casey said.

The likes of Rory McIlroy and Tiger Woods have insisted they will not be swayed by the huge sums on offer by LIV Golf, standing steadfastly by the PGA Tour and insisting it is that established circuit that is committed to golf's best interests.

McIlroy, who has played on Ryder Cup teams with Garcia and Casey, spoke recently of his opposition to LIV Golf, saying: "I hate what it's doing to the game of golf."

LIV is pumping enormous funds into the Asian Tour, too, with a host of LIV Golf players set to take part in that circuit's International Series.

Casey said: "A lot is always talked about growth of the game and stuff, and that is still an area where there is massive potential. There's been great growth in the game all over, but there's massive potential on the international front and I think the guys who are out here understand that and they're embracing it, and we'll see.

"I mean, I've always enjoyed playing international golf and enjoy playing golf certainly in Asia. And I'm looking forward to being in Bangkok, in Jeddah.

"There's rumours about maybe Australia or something like that as well coming back for us. So that's going to be pretty cool."

Lewis Hamilton declared he was "more impressed" by the efforts of Red Bull's engineers than by Max Verstappen's driving ahead of the Dutch Grand Prix.

Having beaten Hamilton to the drivers' championship in controversial circumstances last year, Verstappen has been dominant throughout 2022, and holds a 93-point lead over team-mate Sergio Perez at the top of the standings.

Red Bull also appear certain to end Mercedes' eight-year stranglehold on the constructors' title, having built a 118-point advantage over Ferrari.

Not since the season-opening Bahrain Grand Prix have Red Bull failed to get at least one driver onto the podium, while Verstappen has secured nine victories in his last 11 outings.

But when asked about Verstappen's performances, Hamilton chose to shower praise on those behind his car, responding: "I'm more impressed with [Red Bull's chief technical officer] Adrian Newey and his team.

"I think the team, it is a great team. They've generally had really great cars. 

"I think they used to have really high ride height and more drag than before, but I think they've realised this year that their engine isn't actually slower than others. They've done a fantastic job.

"When you've got a stable platform like that… it's a great team. They've done an amazing job. I've got to take my hat off to Red Bull. They had a great car last year as well."

In 2011, Hamilton famously dismissed Red Bull as "just a drinks company", but now acknowledges his criticism was misplaced.

"Anything I would have said in the past about the team... I didn't mean it in a negative way," the seven-time world champion added.

"A few years ago, I said something about them being a drinks company and it was really just highlighting that you would bet on a car manufacturer more than them. 

"But they've proved me wrong, and they've done a great job."

Meanwhile, Hamilton's strained relationship with 2021 title rival Verstappen could mean the Briton receives a hostile welcome in Zandvoort ahead of Sunday's Dutch Grand Prix. 

Hamilton finished as runner-up to Verstappen at the 24-year-old's home race last year, but refuted suggestions his next outing will resemble an "away fixture".

"It's just another race," Hamilton said. "I'm here to do a job."

Serena and Venus Williams saw hopes of one last US Open glory run together scuppered by a Czech pair who apologised for knocking out the American superstars.

The Williams sisters lost 7-6 (7-5) 6-4 against Lucie Hradecka and Linda Noskova on Arthur Ashe Stadium, with the doubles match given top billing in the New York night session.

Such scheduling had previously been unheard of, but such is the attention being foisted on the sisters that first-round doubles encounter was the match everyone wanted to see, knowing it could well be the last time the siblings play as a team.

Serena has indicated, albeit couched in somewhat vague terms, that this US Open will be her farewell to tennis. Venus, now 42, may follow suit and also retire from the sport.

While 40-year-old Serena remains in the singles, having beaten world number two Anett Kontaveit in round two to set up a Friday night clash with Ajla Tomljanovic, the dream of one more Flushing Meadows doubles title is over.

It was Czech-out time for the duo who have won 14 grand slam doubles titles together, and Hradecka said sorry to the partisan crowd for spoiling the party.

"I'm still in shock that we won, because we were playing for the first time with each other and I think we did a very good job," Hradecka said.

"I'm so sorry for you that we beat them, but we are so happy that we did it."

Hradecka had been planning on playing with Indian Sania Mirza, but an injury for Mirza put paid to that idea, meaning a new partner was required.

Noskova, 17, answered the 37-year-old Hradecka's call, and enjoyed a night to remember.

"Playing against the Williams sisters is a special moment for everybody, anytime," Noskova said.

"I was really lucky I could play with my doubles partner and we could win and pull out a good fight."

It was the Williams' first doubles match at a grand slam since the 2018 French Open, and their first at the US Open since 2014, and although it was a tight contest the younger pair just had the edge.

Neither sister gave an on-court interview or a press conference after the match, with all eyes now turning towards Serena's singles campaign, and the possibility of that extending deep into the second week.

Jimmy Garoppolo was as surprised as everyone else to stay with the San Francisco 49ers for the 2022 season.

Garoppolo was expected to be released by the 49ers before Tuesday's deadline for teams to cut their rosters to 53 players ahead of the regular season but instead agreed a renegotiated one-year deal to stay in San Francisco.

The team had attempted to move Garoppolo this offseason as part of the transition to Trey Lance as their starting quarterback, having traded three first-round picks to select the younger man with the third overall pick in the 2021 NFL Draft.

An offseason shoulder injury for Garoppolo did not help matters, though, and he will instead serve as back-up to Lance after 45 starts for the 49ers and a strong 31-14 record.

"[Returning] really wasn't on my mind to be completely honest," Garoppolo said on Thursday, speaking for the first time since the news broke.

"I was training out here. I had to be here, so I was here for that reason. I was just trying to get my body right.

"I felt very confident out there, and I knew that I was ready to roll. I just needed to figure out where it was. Things kind of fell into place these last couple days."

Garoppolo had considered asking to be released by the team but said it "just wasn't the way I wanted to go".

Now, with clauses to prevent him being traded or tagged, the quarterback will have control of his career beyond 2022.

"Trust me, there was a lot of back and forth going on just with other teams and what I wanted my future to look like," he explained. "This is what I wanted."

For now, Garoppolo will continue to work with Lance, who insists that is no issue.

"It's not my decision; it's an organisation decision," Lance said.

"Jimmy's been on the roster this whole entire time. Obviously, I knew it was a possibility of bringing him back.

"There's been no bad blood at all between me and Jimmy since day one. I was all arms open, excited to have him back."