Novak Djokovic set up a semi-final meeting with Daniil Medvedev at the Astana Open on Friday, cruising past Karen Khachanov in the last eight.

Djokovic complemented a fine display of serving by converting three of his five break points in a 6-4 6-3 victory, recording his seventh consecutive win following his absence from the US Open.

The 21-time grand slam champion has now reached six semi-finals this year, but saw room for improvement in his performance after beating the world number 18.

"I didn't play as well from the baseline as I did in the first two matches, but still it was enough," Djokovic said. "I managed to produce some good tennis when it was most needed in both sets."

Looking ahead to his final-four match, the Serb added: "I always expect highs from myself. Hopefully I can elevate still the level of my game for tomorrow, because it's going to be needed." 

Djokovic will face an 11th tour-level meeting with Medvedev in the next round after his fellow former world number one recorded a dominant 6-1 6-1 win over Roberto Bautista Agut.

On the other side of the draw, third seed Stefanos Tsitsipas beat Hubert Hurkacz 7-6 (10-8) 6-3, and will now face Andrey Rublev after he eased to a 6-1 6-2 win over Adrian Mannarino.

At the Japan Open, a knee injury forced Wimbledon runner-up Nick Kyrgios to withdraw from his meeting with Taylor Fritz, with the American set to take on Denis Shapovalov in the semi-finals.

Seventh seed Shapovalov saw off Borna Coric 6-4 6-3 to reach the final four, while fourth seed Frances Tiafoe advanced with a 6-0 6-4 win against Miomir Kecmanovic.

South Korea's Kwon Soon-woo claimed the final place in the semi-finals in Tokyo, beating Spain's Pedro Martinez 6-3 6-0

World number nine Andrey Rublev comfortably beat qualifier Laslo Djere 6-4 6-3 to secure his place in the second round of the Astana Open.

The fifth seed found a crucial break of serve when leading the opener 5-4 to take the first set in Kazakhstan, before winning the next three games to put himself in the ascendancy in the second.

And despite a desperate last stand to stay in the match from Djere, Rublev held serve three times with relative ease to finish off his Serbian opponent.

Eighth seed Felix Auger-Aliassime served 14 aces to Roberto Bautista-Agut's two in their first-round match, but it was the Spaniard who advanced with a 6-4 7-6 (8-6) success.

Meanwhile, world number 10 Hubert Hurkacz overcame Francisco Cerundolo in straight sets.

Adrian Mannarino, the runner-up in Astana in 2020, came from a set down to beat Stan Wawrinka – playing as a wildcard – 1-6 6-2 6-3, and qualifier Zhizhen Zhang romped to victory with a superb third set to seal a 4-6 6-4 6-1 comeback win of his own over Aslan Karatsev.

At the Tokyo Open, fourth seed Frances Tiafoe cruised into the second round with a 6-3 6-4 triumph over Yasutaka Uchiyama, one of three Japanese players who crashed out at the first-round stage of their home tournament.

Uchiyama's countrymen Taro Daniel and Shintaro Mochizuki also tasted defeat at the hands of Bernabe Zapata Miralles and Brandon Nakashima, respectively.

Roger Federer said he felt the pain of Team Europe's first Laver Cup defeat as the World team crashed the Swiss great's farewell party in breathtaking style.

The final event of Federer's playing career veered off the script as he and Rafael Nadal lost in doubles on Friday, before the team collectively succumbed to a 13-8 defeat in London.

Stunning singles wins for Felix Auger-Aliassime and Frances Tiafoe on Sunday, against Novak Djokovic and Stefanos Tsitsipas respectively, followed a doubles thriller that saw Auger-Aliassime and Jack Sock topple Andy Murray and Matteo Berrettini.

After Team Europe won the first four editions of the Laver Cup, this time they had to swallow the bitter pill of defeat, with Federer sorry to sign off on a losing note.

"Of course I'm disappointed," he said. "I was on the team. I almost lost my voice. My hands hurt from clapping.

"So, yes, I am disappointed. We wish the result would be different. I told Andy [Murray] in the locker room, I don't like losing. It's not fun. It just leaves not the best taste, you know. I think once you have been there and taste success, it's just not the same."

He said his goodbye tournament had been a mix of highs and lows.

"This weekend has been all over the place for me," said the 41-year-old Swiss. "I enjoyed it, but it's unfortunate that we couldn't get the win tonight."

Federer denied he has his eyes set on becoming the next Team Europe captain. Incumbent skipper Bjorn Borg and Team World counterpart John McEnroe have indicated next year's match could be the last that they helm, which would create an appealing vacancy.

"No plans there. Bjorn's doing a great job," said Federer. "Who knows, maybe one day, but we don't have any plans so far."

Next year's match takes place in Vancouver, and Federer will certainly have a role of some sort to play, given he is a co-founder of the event.

"I went through all different types of Laver Cups so far: the first one, the winning teams, now this time on the losing team," Federer said. "There was also one where I was hurt last year but seeing it more from the stands and from the fans' perspective, and now deep on the inside with retirement.

"I have enjoyed the Laver Cup in many different ways, and next year again will be totally different. I'm looking forward to it, and I'm sure Vancouver is going to be fantastic."

Asked what he would miss about tennis, Federer said: "Not the losing press conferences, I tell you that. They are the worst."

Felix Auger-Aliassime and Frances Tiafoe played starring roles as Team World won three matches on the spin on Sunday to claim a first Laver Cup triumph over Team Europe.

Team World went into the final day of action at the O2 Arena in London sitting four points behind their opponents, but they produced a stirring fightback to claim the trophy at the fifth time of asking.

Central to their success was Canadian Auger-Aliassime, who beat Novak Djokovic in singles after successfully teaming up with Jack Sock in the doubles.

Holding an 8-4 lead from Saturday, many expected Team Europe to breeze it from there, but John McEnroe's World team had other ideas and earned a 13-8 victory. 

Up first in the doubles were Auger-Aliassime and Sock, who lost the first set to Team Europe's Andy Murray and Matteo Berrettini.

However, the World duo roared back to deliver three points for their team by claiming a 2-6 6-3 10-8 victory.

Djokovic won two matches for Team Europe on Saturday, yet he was powerless to stop Auger-Aliassime in their singles clash. The 22-year-old Canadian landed a 6-3 7-6 (7-3) over the Wimbledon champion.

That moved Team World 10-8 ahead in the overall contest, setting the stage for a decisive clash between Stefanos Tsitsipas and Frances Tiafoe, with a further three points at stake.

Greek Tsitsipas won the first set, but 24-year-old American Tiafoe stormed back to win an epic tie-break in the second on his way to a 1-6 7-6 (13-11) 10-8 success.

Novak Djokovic played a vital role in Team Europe opening up a four-point lead in the Laver Cup as he won in singles and doubles upon his return to the ATP Tour after a three-month absence.

Djokovic had not played since taking his grand slam count to 21 with the Wimbledon title in July, but he looked as if he had hardly been away as the Serbian beat Frances Tiafoe and then teamed up with Matteo Berrettini in the doubles.

Tiafoe beat Rafael Nadal at the US Open earlier this month and combined with Jack Sock on Friday to defeat the Spaniard again in what was Roger Federer's last ever match, but the American could not get to grips with Djokovic in Saturday's final singles contest.

Djokovic's 6-1 6-3 win secured two points for Team Europe to put them out in front, and he was involved again in the last of the day's action as the team's advantage doubled to four points.

Berrettini and Djokovic tussled with Sock and Alex de Minaur and ultimately had too much, winning 7-5 6-2 in less than an hour and a half.

Earlier, Taylor Fritz's three-set triumph over Cameron Norrie put Team World briefly back on level terms.

Fritz made a brutal start but ended up being forced to a match tie-break, eventually coming through with a 6-1 4-6 10-8 victory.

That wiped out the two-point lead Berrettini had given Europe in the first match of the day, with the Italian edging Saturday's most gruelling tussle.

He saw off Felix Auger-Aliassime 7-6 (13-11) 4-6 10-7, and despite finding himself on court for over two hours, Berrettini was still sharp enough to emerge victorious alongside Djokovic.

A tearful Roger Federer bid goodbye to a 25-year career with defeat at the Laver Cup in a doubles contest that went past midnight in London.

Federer teamed with long-time rival Rafael Nadal against American duo Frances Tiafoe and Jack Sock as Team Europe face Team World at the O2 Arena.

After winning the first set, the Swiss and the Spaniard were faced with a spirited fightback from Tiafoe and Sock, who won a second-set tie-break before also clinching the match tie-break to seal victory 4-6 7-6 (7-2) 11-9.

There had been a great atmosphere in London on Friday for the fifth edition of the three-day competition.

Federer, 41, had not played a match since he was knocked out of Wimbledon by Hubert Hurkacz at the quarter-final stage last year due to knee injury.

There were huge cheers when Federer and Nadal came onto the court and loud roars for the Swiss great when he came up with his first winner.

There was a sensational moment in the first set when Federer appeared to have won a point after his shot hit the top of the net and bounced in, only for a replay to show the ball had somehow been hit through a small hole between the net and the post, meaning Team Europe lost the point, despite the remarkably unlikely event of the ball passing through such a gap.

Novak Djokovic and Andy Murray were among Federer and Nadal's team-mates offering some tactical input between games, and the legendary duo had to save a first break point of the match before the Spaniard held to put them 5-4 up.

It was two of the all-time greats that took a tight opening set when Sock put a volley into the net, prompting Team World captain John McEnroe to tell his doubles pair they appeared to be getting "caught up in the hoopla." 

A determined Team World managed to level it up after a back-and-forth second set went to a tie-break, with Tiafoe and Sock coming out on top with their superior power and pace.

That took it to a dramatic deciding match tie-break, with every point keeping fans holding their breath, including some trademark Federer magic at 6-7 when he diverted a Sock shot across court for a crowd-pleasing winner.

It looked like the dream script was being followed as Federer served at match point for himself and Nadal, but the former could only hit a shot into the net, before Sock and Tiafoe won the next two points to secure the win for Team World.

It was then hugs all round as respect was paid to the 20-time grand slam winner at the conclusion of a phenomenal career. 

Earlier in the day, Casper Ruud drew first blood for the Team Europe, beating Sock 6-4 5-7 10-7, before Stefanos Tsitsipas doubled their advantage with an emphatic 6-2 6-1 defeat of Diego Schwartzman.

There was drama after the first set of that second singles match when a protester, wearing a T-shirt with the message, "END UK PRIVATE JETS" on, set their arm alight on court before being escorted out by security. 

Alex de Minaur then got Team World on the board with a 5-7 6-3 10-7 success over home favourite Murray before the late-night main event under the lights.

Frances Tiafoe has replaced John Isner in the Team World line-up for next week's Laver Cup in London.

Isner has failed to recover from the wrist injury that forced him to withdraw from the US Open ahead of his second-round match against Holger Rune.

Fellow American Tiafoe knocked out Rafael Nadal en route to reaching the semi-finals at Flushing Meadows, where he was beaten by tournament winner Carlos Alcaraz.

The 24-year-old, now at a career high of 19th in the ATP rankings, will take Isner's place at the O2 Arena as Team World aim to end Team Europe's run of four triumphs in a row.

Tiafoe previously took part in the tournament in 2017 and 2018, but has missed the past two editions.

Team World captain John McEnroe said: "I am thrilled to have Frances on the team. 

"He's raised his game to a whole new level and has shown he can compete and win against the best players on Tour. He brings a positive energy that should help the entire team."

Tiafoe joins Felix Auger-Aliassime, Taylor Fritz, Diego Schwartzman, Alex de Minaur and Jack Sock on McEnroe's six-man team.

Team Europe, led by Bjorn Borg, is made up of Nadal, Novak Djokovic, Stefanos Tsitsipas, Casper Ruud, Roger Federer and Andy Murray.

The tournament is contested on an indoor hard court and runs for three days from September 23.

Carlos Alcaraz will "give everything" to win the US Open and become world number one as he prepares to face Casper Ruud in Sunday's final.

Alcaraz overcame home favourite Frances Tiafoe in a thrilling five-set semi-final at Flushing Meadows on Friday, winning 6-7 (6-8) 6-3 6-1 6-7 (5-7) 6-3.

The 19-year-old will take on Ruud for the title after the Norwegian beat Karen Khachanov in four sets earlier in the day.

The honour of becoming world number one will also be on the line for both, after current holder Daniil Medvedev was eliminated in the round of 16 by Nick Kyrgios.

Speaking on-court after his victory against a spirited Tiafoe, Alcaraz said: "To be honest in the semi-final of a grand slam you have to give everything. 

"We have to fight until the last ball. It doesn't matter if we are fighting for five hours, six hours. It doesn't matter. You have to give everything on court. Frances gave everything on court. This is amazing."

The winner of Sunday's final will seal his first career grand slam, while Alcaraz will create history if he wins as it will make him the youngest world number one since the ATP rankings began in 1973.

It will be the Spaniard's first grand slam final, while his opponent appeared in a losing effort to Rafael Nadal in June's French Open final.

Alcaraz will need to recover from his third consecutive five-set match at the US Open, but insisted he will "give everything" to win.

"It's amazing to be able to fight for big things. First time in the final of a grand slam. I can see the number one in the world, but at the same time it's so far away," Alcaraz added.

"I have one more to go against a player who is unbelievable. He deserves to play a final. He played the final of a grand slam in Roland Garros. This is my first time. 

"I'm going to give everything that I have. I will have to handle the nerves of being in a final of a grand slam, but obviously I'm really, really happy and as I said before every match, I'm going to enjoy the moment."

Frances Tiafoe insisted he will return and win the US Open "one day" after coming up short in an enthralling five-set semi-final against Carlos Alcaraz.

The home favourite won the first and fourth sets on tie breaks, only to lose the decider as his 19-year-old opponent sealed a 6-7 (6-8) 6-3 6-1 6-7 (5-7) 6-3 victory on Friday.

Tiafoe was emotional after his loss as an appreciative crowd at Flushing Meadows acknowledged his efforts.

"I gave everything I had," he said during his on-court interview. "Too good from Carlos tonight.

"I gave everything I had for the last two weeks. I came here wanting to win the US Open and I feel I let you guys down."

The 24-year-old had an impressive run in the tournament, beating higher seeds Diego Schwartzman, Rafael Nadal and Andrey Rublev to reach the final four.

"This one hurts. This one really, really hurts," he added. "Too good from Carlos, you're gonna win a lot of grand slams, you're a hell of a player, hell of a person.

"I'm happy I got to share the court and such a big stage with you. 

"I'm going to come back and I will win this thing one day. I'm sorry guys."

Alcaraz will face Casper Ruud in Sunday's final after the Norwegian beat Karen Khachanov in four sets in Friday's other semi-final.

Carlos Alcaraz is having a remarkable breakthrough season, and he has a chance to put an exclamation point on it after defeating Frances Tiafoe 6-7 (6-8) 6-3 6-1 6-7 (5-7) 6-3 in Friday's US Open semi-final.

It will be 19-year-old Alcaraz's first appearance in a grand slam final, and with a win against Casper Ruud he will also become the youngest world number one in men's tennis history, beating out Lleyton Hewitt (20 years and nine months old) by over a year.

In a tight first set where both players failed to capitalise on their break point opportunities, Tiafoe saved an Alcaraz set point to force the tiebreaker, where he would finally secure the opening frame with the fourth set point of his own.

With such fine margins deciding the outcomes, some sloppy serving would flip the script in the second set. After Tiafoe had no double faults in the first and Alcaraz had three, it was Alcaraz cleaning things up to post zero for the rest of the match.

Meanwhile, Tiafoe had a pair of costly double faults in the second, which ultimately led to the only break in the set, as Alcaraz converted one of his four opportunities, while saving the three break points he faced.

Tiafoe's vaunted serve continued to meltdown in the third frame, dropping his first-serve accuracy from 67 per cent to 30 per cent, which led to him winning just 35 per cent (seven-of-20) of his service points as Alcaraz lifted.

Alcaraz needed only 34 minutes to wrap up the third set, thanks in large part to Tiafoe committing 12 unforced errors with only six winners, as the Spaniard finished the set with just one ace and four winners.

As the double faults and unforced errors faded away, Tiafoe rediscovered the kind of form and fight that saw him stylishly handle the challenge of Rafael Nadal earlier this week. Tiafoe and Alcaraz traded breaks in four consecutive games in the fourth set, with the American having to save a match point to force another tiebreaker where he would prevail.

But Alcaraz would not be denied, grabbing a crucial break in the opening game of the fifth set, and when Tiafoe snatched it back, his joy was short-lived as Alcaraz re-broke in the very next game to-love, and once more to finish the match.

Data Slam: Alcaraz way ahead of schedule

If he defeats Ruud in the final, Alcaraz will become the second-youngest men's US Open champion ever at 19 years and four months old, trailing only Pete Sampras (19 years, 28 days). 

Both the third and fourth-youngest champions – Oliver Campbell (19 years, six months) and Richard Sears (19 years, 10 months) – won their titles in the late-1800s. 

ACES/DOUBLE FAULTS

Alcaraz - 6/3

Tiafoe - 15/6

WINNERS/UNFORCED ERRORS

Alcaraz - 59/37

Tiafoe - 51/52

BREAK POINTS WON

Alcaraz - 9/20

Tiafoe - 3/7

Frances Tiafoe celebrated a "crazy" win after his defeat of Andrey Rublev saw him become the first American man to reach the US Open semi-finals in 16 years.

Tiafoe stunned Rafael Nadal on Monday and followed up that career-high by reaching the last four of a major for the first time on Wednesday.

Ninth seed Rublev, who has lost all six of his grand slam quarter-finals, stood in his way but Tiafoe prevailed 7-6 (7-3) 7-6 (7-0) 6-4 at Arthur Ashe Stadium.

The 24-year-old is the first male player from the United States to reach a semi-final at Flushing Meadows since Andy Roddick in 2006.

Roddick went on to reach the final that year, though fell short of winning a second US Open final as he lost to Roger Federer.

This time around, Tiafoe will face either Jannik Sinner or Carlos Alcaraz, who has a shot at becoming the new world number one. 

"This is wild, this is crazy," world number 26 Tiafoe said after his win. 

"I had the biggest win of my life 48 hours ago and coming out and getting another big win. Andrey's a hell of a player, and to back it up, that's huge. It's tough to turn the page, but I did and now I'm in the semis.

"I feel so at home on courts like this. This court is unbelievable. [The crowd] gets so far behind me, I want to play, I want to give my best. I always find a way somehow on this court, I always play some great tennis and I have been. Let's enjoy this, we've got two more."

Tiafoe might well be the only home hope left for the American crowd to back in New York come the end of play on Wednesday, with Jessica Pegula facing the daunting task of taking on world number one Iga Swiatek in the women's singles.

Frances Tiafoe is dreaming big after upsetting Rafael Nadal in the US Open fourth round on Monday to open up the men's singles draw.

The 22nd-seeded American stunned the 22-time grand slam champion, winning 6-4 4-6 6-4 6-3 in three hours and 34 minutes.

The victory meant Tiafoe reached the US Open quarter-finals for the first time, having fallen in the fourth round in the past three years. It also equaled his best-ever major return, having made the 2019 Australian Open quarters as well.

It also opens up the men's singles draw for a potential new grand slam winner, with Marin Cilic – who is due to play third seed Carlos Alcaraz on Monday evening – the last remaining major champion.

"Everyone is looking at it I'm sure," Tiafoe told reporters about the draw. "Everyone looks at it. Here we go, right? So am I. I'm just taking it day by day.

"Slams, crazy things can happen. Especially here in New York, so it's going to be a fun ride come Wednesday."

Tiafoe will take on ninth seed Andrey Rublev on Wednesday in the last eight, where he will hope to re-produce the "unbelievable" form he displayed against Nadal.

"I'm beyond happy, almost in tears, I can't believe it," Tiafoe said in his on-court interview. "I played unbelievable tennis today. I really don't know what happened."

During his press conference, he added: "It was definitely one hell of a performance… I just came out there and I just believed I could do it.

"It helps I played him a couple times. Haven't played him in some years [not since 2019]. I'm a different person now, different player."

Tiafoe had never beaten Nadal before, nor had he taken a set off the Spanish world number three. The victory was Tiafoe's third against a top-five opponent.

"For a while there, I was like, geez, you see all these young guys get Rafa, Fed [Roger Federer], Novak [Djokovic], am I ever going to be able to say I beat one of them?" he said.

"Today I was like, no, I'm going to do that. Now it's something to tell the kids, the grandkids, I beat Rafa."

Tiafoe was also blown away after four-time NBA MVP LeBron James tweeted after his win, labeling him the "young king".

"I was losing it in the locker room. I was going crazy," he said. "That's my guy, so to see him post that, I was like do I retweet it as soon as he sent it? I was like, you know what, I'm going to be cool and act like I didn't see it and then retweet it three hours later."

Frances Tiafoe produced a stunning performance to knock Rafael Nadal out of the US Open and reach the quarter-finals of his home grand slam for the first time.

Tiafoe was playing in the fourth round at Flushing Meadows for the third successive year, but his prospects of going beyond that point appeared slim against the 22-time grand slam champion.

Nadal had won his two previous encounters with Tiafoe but found the 24-year-old up to the challenge this time around, his firepower proving too much for his illustrious opponent.

So often Nadal has snatched victory from the jaws of defeat and there were moments during his epic that he seemed primed to do so again. Yet winning the second set and breaking at the start of the fourth both proved false dawns for Nadal, as Tiafoe prevailed 6-4 4-6 6-4 6-3 to blow a men's draw that has already lost 2021 champion Daniil Medvedev wide open.

It became clear early on that the pace of Tiafoe's ball-striking and the variety in his game would cause Nadal problems and he got the break his play deserved when the Spaniard sent a pair of forehands long in the seventh game.

Tiafoe rarely looked daunted by the occasion and though he let a pair of set points go begging after going 40-0 up at 5-4, he snatched the third with a volley to ensure Nadal would have to mount a comeback.

A classic Nadal turnaround appeared very much on the cards when Tiafoe's composure deserted him trailing 5-4 on serve in the second, a double fault from the American allowing Nadal to level the match.

But any thought of Nadal, curiously unable to make an impression on Tiafoe's second serve, dominating from there was soon extinguished, Tiafoe breaking for a 4-3 lead in the third with a searing backhand down the line.

Tiafoe consolidated with an intelligent serve and volley play on his second serve and, after a Nadal hold, made no mistake in winning the third set on his racquet with an ace.

Controversy soon followed as Nadal broke a furious Tiafoe with a vicious forehand in a game played as the Arthur Ashe Stadium roof was closing.

Tiafoe received a code violation for "audible obscenity" after venting his frustration at that decision by the tournament officials, but he harnessed his anger in the right way. Nadal sent down a pair of double faults in an uncharacteristically sloppy service game and Tiafoe capitalised with a cross-court backhand that proved too hot for the four-time champion to handle.

A backhand error from Nadal gave Tiafoe another break for a 4-3, and he subsequently raced to the finish line, getting 40-0 on Nadal's serve and then completing the fairytale with on his second match point as Nadal sent another backhand into the net.

Data Slam: Tiafoe hands Nadal first grand slam loss of 2022

After winning both the Australian Open and the French Open, and withdrawing from Wimbledon due to injury, this is Nadal's first loss at a grand slam this year.

Tiafoe also joins James Blake and Andy Roddick as the only Americans to ever defeat Nadal at a grand slam, and it snaps Nadal's streak of 16 consecutive grand slam quarter-final appearances.

ACES/DOUBLE FAULTS

Tiafoe – 18/4

Nadal – 9/9

WINNERS/UNFORCED ERRORS

Tiafoe – 48/28

Nadal – 33/26

BREAK POINTS WON

Tiafoe – 5/8

Nadal – 2/6

Rafael Nadal says his third-round win over Richard Gasquet was his best of this year's US Open as he works his way back after the abdominal tear that ended his Wimbledon campaign.

Prior to the US Open, Nadal had only played once since withdrawing from the Wimbledon semi-final against Nick Kyrgios in early July, losing to Borna Coric in Cincinnati.

The second seed got past Rinky Hijikata and Fabio Fognini in four sets in the first two rounds at Flushing Meadows before Saturday's 6-0 6-1 7-5 win over French veteran Richard Gasquet in two hours and 17 minutes.

"My best match in the tournament," Nadal told reporters. "Easy to say that because the other day was tough.

"But important improvement. But I need to keep going. It's a good victory for me. Straight sets for the first time. Third set had been a challenge. He increased the level.

"I went through some difficult moments. That's something that is good that I went through that and saved that moments with a positive feelings. Happy to be in the fourth round, without a doubt."

The victory over Gasquet meant he has progressed to the second week at Flushing Meadows for the 12th time in his career, although he conceded he would need to lift his level to take out the title, starting with Monday's fourth-round match with 22nd seed Frances Tiafoe.

Nadal is gunning for his third major title this calendar year in New York, having triumphed at the Australian Open and French Open.

The 36-year-old's Australian Open success in February came after minimal preparation due to a foot injury, similar to his US Open lead-up due to the abdominal issue.

"I think I played better in Australia than here going to the second week," Nadal said. "But I have zero background in terms of victories and all this stuff.

"Here I played little bit worse than in Australia, without a doubt. But the story of the year and the results on the slams have been incredible, so that helps.

"I don't know the balance, what's better or worse. But all these victories help to be a little bit more confident. It's a moment to increase, to making a step forward."

"Second week against a great player like Frances, I need to be ready to play and to raise my level. I hope to be able to make that happen.

"I know is the right moment to make an improvement if I want to keep having chances to keep going on the tournament."

Nick Kyrgios started his Friday by finishing off his third-round win against Reilly Opelka, and his business was not finished until after 1am local time when he defeated Frances Tiafoe 6-7 (5-7) 7-6 (14-12) 6-2 in the quarter-final.

Due to length rain delays on Thursday, Kyrgios was one of five players forced to abandon their matches and return to finish them first thing on Friday, with Kyrgios and Russia's Andrey Rublev the only two to successfully navigate both.

Tiafoe defeated Botic van de Zandschulp 4-6 6-2 6-3 in the morning, but Kyrgios' ability to keep his service games short was a decisive factor, winning the ace count 35-14 and not conceding a single break all match.

Rublev had to deal with Maxime Cressy in the morning, winning 6-4 7-6 (10-8), setting up a quarter-final later at night against J.J. Wolf after the American defeated Holger Rune 7-5 4-6 6-3.

Rublev made his second match look far easier, cruising through 6-2 6-3 to earn a semi-final against Japan's Yoshihito Nishioka after he needed over three-and-a-half hours to beat Daniel Evans 7-6 (7-5) 4-6 7-5.

In an all-unseeded semi-final, Kyrgios will play Sweden's Mikael Ymer, who fought his way past Sebastian Korda 6-2 5-7 6-3 after the American beat Bulgaria's Grigor Dimitrov 4-6 6-1 6-2 earlier in the day.

Meanwhile, down in Mexico at the Los Cabos Open, Daniil Medvedev earned his spot in the final by defeating Serbia's Miomir Kecmanovic 7-6 (7-0) 6-1.

Medvedev will play England's Cameron Norrie for the title after he prevailed in arguably the match of the tournament against top-10 talent Felix Auger-Aliassime 6-4 3-6 6-3.