Home hopeful Taylor Fritz reached his first ever grand slam semi-final at the US Open, beating world number four Alexander Zverev in four sets at Flushing Meadows. 

Fritz, who had lost his previous four grand slam quarter-finals, came through tie-breaks in the first and fourth set to emerge a 7-6 (7-2) 3-6 6-4 7-6 (7-3) victor.

Both players traded blows in the opening set, with Fritz squandering the opportunity to take the opener in the 12th game after missing three set points, only to go on and win the tie-break. 

Zverev continued to match his American opponent stride for stride, but struck the decisive blow in the second set with a break point in the eighth game to level the encounter.

But backed by a raucous crowd inside Flushing Meadows, Fritz raced into a 3-0 lead in the third and despite Zverev finding a break of his own, he was unable to stop the world number 12 going within touching distance of victory. 

With the atmosphere intensifying, a second tie-break of the game would decide whether the encounter went the distance, with Zverev pulling the final ball wide to claim a famous win for Fritz at Arthur Ashe Stadium.

Fritz could play fellow American Frances Tiafoe for a place in a first grand slam final, with Tiafoe squaring off against Grigor Dimitrov in Tuesday's night session.

Data Debrief: Fritz hits the heights

Defeating Zverev at the age of 26y 310d, Fritz has become the oldest American in the Open Era to reach their maiden men's singles SF at the US Open.

It was the 12th-seeded Fritz's fourth win over an ATP top-10 player in a major this season, the most by an American man in one year since Andre Agassi had five in 1999.

Home hopeful Taylor Fritz reached his first ever grand slam semi-final at the US Open, beating world number four Alexander Zverev in four sets at Flushing Meadows. 

Fritz, who had lost his previous four grand slam quarter-finals, came through tie-breaks in the first and fourth set to emerge a 7-6 (7-2) 3-6 6-4 7-6 (7-3) victor.

Both players traded blows in the opening set, with Fritz squandering the opportunity to take the opener in the 12th game after missing three set points, only to go on and win the tie-break. 

Zverev continued to match his American opponent stride for stride, but struck the decisive blow in the second set with a break point in the eighth game to level the encounter.

But backed by a raucous crowd inside the Flushing Meadows, Fritz raced into a 3-0 lead in the third and despite Zverev finding a break of his own, he was unable to stop the world number 12 going within touching distance of victory. 

With the atmosphere intensifying, a second tie-break of the game would decide whether the ecnounter went the distance, with Zverev pulling the final ball wide to claim a famous win for Fritz at Arthur Ashe Stadium.

Fritz could play fellow American Frances Tiafoe for a place in a first grand slam final, with Tiafoe squaring off against Grigor Dimitrov in Tuesday's night session.

Data Debrief: Fritz hits the heights

Defeating Zverev at the age of 26y 310d, Fritz has become the oldest American in the Open Era to reach their maiden men's singles SF at the US Open.

It was the 12th-seeded Fritz's fourth win over an ATP top-10 player in a major this season, the most by an American man in one year since Andre Agassi had five in 1999.

Jannik Sinner is anticipating a gruelling US Open quarter-final clash with Daniil Medvedev after producing some of his best tennis of the year to beat Tommy Paul in the fourth round.

Sinner made a slow start against the home favourite in front of a raucous crowd at Arthur Ashe Stadium, swiftly going two breaks down before recovering his composure.

He needed tie-breaks to take the first two sets but produced a mesmerising display in the third, wrapping up a 7-6 (7-3) 7-6 (7-5) 6-1 victory to ensure he has reached at least the quarter-finals of all four grand slams in 2024.

Sinner has also made the last eight at his first 12 ATP-level events this year. At the age of 23 years and 17 days, he is the second-youngest man to achieve that feat in the Open Era, after Jimmy Connors in 1974 (21 years, 290 days).

While early exits for Carlos Alcaraz and Novak Djokovic have seen the opposite side of the draw open up, things do not get any easier for the world number one as he faces Medvedev next.

The Russian, who won the 2021 edition of the US Open, trounced Nuno Borges 6-0 6-1 6-3 in his own fourth-round matchup and has won 11 straight sets of tennis.

Sinner, meanwhile, has struggled with hip problems throughout the season and was seen clutching the area after stumbling during one long rally versus Paul.

He is hopeful of overcoming that concern ahead of Wednesday's quarter-final but knows he will be pushed all the way by Medvedev.

"For sure mentally I didn't start very well. I was a double break down in the first set. I tried to stay there mentally and for sure this was one of the keys to win this match," Sinner said. 

"I served very well in the beginning of the match. There are some ups and downs obviously in best of five, it's normal to have that. 

"But finding my rhythm in the end of the match hopefully helps for the next match, so let's see.

"There's going to be a lot of rallies so hopefully I'll be ready physically. We'll try to do our best on court and hopefully you guys enjoy it."

The winner of Sinner's clash with Medvedev will face either Jack Draper or Alex de Minaur for a spot in the final, with the former reaching his maiden grand slam quarter-final by beating Tomas Machac 6-3 6-1 6-2.

Draper, who is the first British man to make the quarter-finals at Flushing Meadows since Andy Murray in 2016, told Sky Sports after his win: "I feel amazing being in the last eight.

"My first quarter-final, it means the absolute world to me. I've definitely felt more and more confident in myself."

Daniil Medvedev breezed into the US Open quarter-finals with a commanding straight-sets win over Nuno Borges on Monday.

As the only former men's champion still in the competition, the Russian put out a statement with his 6-0 6-1 6-3 victory in just one hour and 48 minutes on Arthur Ashe Stadium.

Medvedev showed his intent early in the match, winning every game in the first set as Borges failed to find his footing and struggled to put the 2021 champion under any pressure.

The Portuguese did win his first game at the start of the second set, but Medvedev was soon back in control, going on another six-game winning streak to put him out of sight.

Borges finally showed some fight in the final set, though it was too little too late. He got his first, and only, break of the match, but could not push his advantage as the world number five claimed two of his own to book his place in the next round.

He will face either world number one Jannik Sinner or Tommy Paul in the next round at Flushing Meadows. 

Data Debrief: Statement of intent

Since losing the second set of his first match in New York, Medvedev has not looked back, going on to win every single one since.

Borges barely laid a hand on him in the fourth round though, as Medvedev stayed on top by successfully converting eight break points - he has now converted 29 such points at the US Open this year, the most of any player.

Since 2019, when the 28-year-old reached the quarter-finals of the US Open for the first time, no player has reached this stage more in men's singles than Medvedev (five).

Daniil Medvedev restored order by beating Flavio Cobolli in the US Open evening session, avoiding the same fates as former champions Novak Djokovic and Carlos Alcaraz.

The Russian, who is now the only former champion remaining in the men's field at Flushing Meadows, won 6-3 6-4 6-3 in two hours and 18 minutes.

Though Cobolli fought well, getting the first break in the match early on and valiantly defending set point six times in the first two sets, he could not stage another upset.

Medvedev struck 33 winners as he asserted his dominance and will meet Nuno Borges in the fourth round in New York.

"I said it before the match that for me the upsets don't really matter," Medvedev said.

"The only thing [is when] the conditions are a bit tricky, the favourites maybe have less margin than the other guys. Just have to be more cautious.

"It was a tough match. It was just a little bit up and down, and at one moment I started playing much better on my serve than on his.

"If I play good tennis I can win the whole thing. If I don't play good, I can lose against anyone."

Data Debrief: No upsets here

With two of the favourites for the title already out of the race, Medvedev will feel good about his chances of winning a second US Open title.

This victory was his 138th combined match win on hard court (grand slams and ATP Masters 1000 events), equalling Roger Federer for the second-most of any player on the surface in the past decade, trailing only Novak Djokovic (227). 

Medvedev is into the fourth round for the 11th time in the men's singles event at grand slams on hard court - he is the only Russian in the Open era to reach this stage 10+ times. 

Jannik Sinner beat Australia's Christopher O'Connell in straight sets to reach the fourth round of the US Open on Saturday, avoiding a similar fate to Carlos Alcaraz and Novak Djokovic.

The men's draw at Flushing Meadows has been blown wide open by early exits for Alcaraz and Djokovic, but the top seed remains in the hunt after a composed performance.

He reached the fourth round for a fourth consecutive year with a routine 6-1 6-4 6-2 victory, setting the tone with several huge groundstrokes in the opening set.

O'Connell never looked likely to fight back as Sinner smashed 46 winners in a ruthless performance, wrapping up his win in one hour and 56 minutes.

The Australian Open champion will face either Tommy Paul or Gabriel Diallo for a place in the last eight, and he was relieved to survive an opening week full of surprises.

"Everything can happen in this sport, so I try to stay on my side of the net and I'm trying to take the tournament day by day," Sinner said in his on-court interview after the win. 

"Each opponent is a very tough challenge and [I am] also enjoying every moment on the court. There have been already a couple of upsets, so let's see what's coming.

"But I'm very happy to still be here and hopefully I can play as many matches as possible. But as I said, we go day by day and then we'll see how it goes."

Data Debrief: Sinner heating up

Sinner lost his first set of the tournament to Mackenzie McDonald but has been largely untouchable since then.

He has only lost 18 games across his last nine sets of tennis, an average of two per set.

The Italian's winning streak now stands at seven straight matches, meanwhile, following his triumphant Cincinnati Open run.

Defending US Open champion Novak Djokovic suffered a shock exit at Flushing Meadows as he lost in four sets to Alexei Popyrin. 

Djokovic arrived at the tournament with confidence following his gold medal triumph at the Paris Olympics, and was tipped to lift a record-extending 25th grand slam title.

However, the Serbian's hopes of a fifth success in New York were dashed as he followed fellow favourite Carlos Alcaraz out of the competition in the third round. 

Popyrin emerged victorious in three hours and 18 minutes, prevailing 6-4 6-4 2-6 6-4 to confirm Djokovic's earliest exit from the tournament in 18 years.

"I have played some of the worst tennis I have ever played," Djokovic said.

"Honestly, the way I felt and the way I played from the beginning of this tournament, third round is a success."

"I tried my best, I didn't have any physical issues. I just felt out of gas, and you could see that. From the first match, I just didn't find myself on this court.

"Life moves on. I'll try to recalibrate and look forward to what's next."

Data Debrief: Another one bites the dust

Djokovic was far from his clinical best, serving a career-high 14 double faults in a grand slam match and committing 49 unforced errors.

The Serbian will also end the year without winning a grand slam title, the first time he has done so since 2017.

But the day belonged to Popyrin, saving 12 of the 16 break points he faced against the world number two, finding particular success with his forehand as 31 of his 49 winners came from that shot.

Defending US Open champion Novak Djokovic suffered a shock exit at Flushing Meadows as he lost in four sets to Alexei Popyrin. 

Djokovic arrived at the tournament with confidence following his gold medal triumph at the Paris Olympics, and was tipped to lift a record-extending 25th grand slam title.

However, the Serbian's hopes of a fifth success in New York were dashed as he followed fellow favourite Carlos Alcaraz out of the competition in the third round. 

Popyrin emerged victorious in three hours and 18 minutes, prevailing 6-4 6-4 2-6 6-4 to confirm Djokovic's earliest exit from the tournament in 18 years.

"I have played some of the worst tennis I have ever played," Djokovic said.

"Honestly, the way I felt and the way I played from the beginning of this tournament, third round is a success."

"I tried my best, I didn't have any physical issues. I just felt out of gas, and you could see that. From the first match, I just didn't find myself on this court.

"Life moves on. I'll try to recalibrate and look forward to what's next."

Data Debrief: Another one bites the dust

Djokovic was far from his clinical best, serving a career-high 14 double faults in a grand slam match and committing 49 unforced errors.

The Serbian will also end the year without winning a grand slam title, the first time he has done so since 2017.

But the day belonged to Popyrin, saving 12 of the 16 break points he faced against the world number two, finding particular success with his forehand as 31 of his 49 winners came from that shot.

Carlos Alcaraz suffered a shock defeat to Botic Van de Zandschulp at the US Open.

Alcaraz, the French Open and Wimbledon champion, had been tipped to win a third major of the year at Flushing Meadows.

However, the Spaniard's hopes of becoming just the third player to win the French Open, Wimbledon and US Open in the same season were dashed by unseeded Dutchman Van de Zandschulp in the second round.

Van de Zandschulp prevailed 6-1 7-5 6-4 to cause the tournament's first huge shock.

"I think my level stayed at the same point all the match," said Alcaraz, who had won his previous 15 grand slam matches.

"It wasn't enough to win the match or to give myself the chance to get into the match or try to give myself chances.

"I didn't feel well hitting the ball. I think I made a lot of mistakes. When I wanted to come back, it was too late.

"He didn't make a lot of mistakes that I thought he was going to do so I was confused a little bit. I didn't know how to manage that.

"I came here with not as much energy as I thought that I was going to come with. But I don't want to put that as an excuse."

Data Debrief: Dutch delight

This was Van de Zandschulp's second career win over a top-five opponent, as he became just the second Dutch player to achieve that feat at the US Open, while he is the first from his nation to defeat a top-three player since 1991. 

Indeed, Van de Zandschulp, who will face Jack Draper next, snapped a 43-match losing streak for Dutch players against ATP top 10 opponents at the majors.

Jannik Sinner continued his quest for US Open glory in impressive fashion by beating home hopeful Alex Michelsen in straight sets at Flushing Meadows. 

Sinner, who is aiming to secure a second grand slam of 2024, needed just an hour and 39 minutes to dispatch his American opponent, emerging a 6-4 6-0 6-2 victor.  

The world number one navigated a difficult opening set, seeing his opening game break evaporate immediately before a break point in the ninth game gave him the early advantage. 

Sinner would showcase his class in the second, dropping 11 points throughout the entirety of the set to go within touching distance of advancing to the third round. 

Michelsen would match his opponent for the opening games of the third set, but a break in the fifth game proved decisive, with Sinner able to cruise to victory from then on.

The Italian's triumph set up a meeting with Australian Christopher O'Connell after overcoming a scare against Italian qualifier Mattia Bellucci in four sets. 

Data Debrief: The Italian job

Sinner's triumph over Michelsen saw him achieve consecutive 50-win seasons at ATP level, becoming the first Italian in the Open Era to reach that number.

The world number one impressed on serve, winning 30 of his 37 first-serve points, while also hitting 23 winners compared to the American's 15. 

Novak Djokovic said he "served awful" after progressing to the third round of the US Open.

Djokovic was being pushed hard by his Serbian compatriot Laslo Djere in Wednesday's headline clash at Flushing Meadows.

Indeed, the reigning champion needed two hours to take the first two sets, but Djere was eventually forced to retire through injury, handing Djokovic a 6-4 6-4 2-0 victory.

"It was a big fight, more than two hours for two sets," Djokovic said.

"I served awful and without the serve, you have to grind, you have to run."

The victory brought up Djokovic's 90th match win at the US Open, moving him one clear of Roger Federer, with only Jimmy Connors (98) ahead of the 37-year-old.

"It doesn't get bigger than this in terms of a tennis stage," said Djokovic, who will face Australia's Alexei Popyrin in the next round.

"The atmosphere is incredible and it's a great privilege to be able to play here again at my age."

Data Debrief: Djokovic stands alone

Djokovic is now the only male player in the Open Era to win at least 90 matches at each of the four grand slams.

This win also improved Djokovic's career record against Djere to 3-0. His overall record against fellow Serbians, meanwhile, stands at 30-5, while he has only lost once in 19 hard-court matches against his compatriots, going down to Janko Tipsarevic at the ATP Finals in 2011.

Carlos Alcaraz insisted he is not thinking about Rafael Nadal's grand slam record following his triumph over Australian qualifier Li Tu at the US Open. 

Alcaraz was able to overcome a scrappy second set to win 6-2 4-6 6-3 6-1 at Flushing Meadows, serving eight aces and producing 50 winners to his opponents' 19. 

The Spaniard started strongly, finding himself a set and a break to the good before four double faults in the second allowed Tu a way back into the contest. 

However, the world number three would recover, dominating the third as he confirmed his progression to the next round with a love game in the final set. 

Alcaraz is aiming to become the third man in history after Rod Laver and Nadal to win the French Open, Wimbledon and the US Open in the same calendar year. 

"Well, after this interview I’m going to try to pretend I never heard that," Alcaraz told ESPN when asked about the statistic. 

"Obviously it would be a great achievement if I make it, but it is going to be difficult."

The Olympic silver medallist faces Botic van de Zandschulp in the next round after the Dutchman defeated Denis Shapovalov in straight sets. 

Data Debrief: Alcaraz continues grand slam winning streak

Alcaraz's triumph at Flushing Meadows was his 15th grand slam victory in a row, last losing in a major tournament against Alexander Zverev at the Australian Open quarter-finals. 

Among players to begin their career in the Open Era, only John McEnroe (69) has achieved 60 men's singles match wins at grand slam events in fewer matches than Alcaraz (70), following the latter's win over Tu.

Jannik Sinner survived an early scare in the US Open first round after overcoming Mackenzie McDonald on Tuesday.

The Italian managed a 2-6 6-2 6-1 6-2 victory over the world number 140, having looked well off the pace in the opening set.

McDonald's fellow American Alex Michelsen awaits in the second round for Sinner, who triumphed in his first major match since an independent tribunal cleared any wrongdoing from positive tests for banned substances.

The world number one may have been impacted by those ongoing off the court and was slow to get going, dropping his serve three times en route to a first-set concession.

Sinner held off seven break-point opportunities from the home favourite in that opener, and improved from then on, losing on his serve just once in the second set.

The 23-year-old never looked back from that second-set clincher, easing to victory in just under two-and-a-half hours.

Data Debrief: Super Sinner flying

Sinner, who won his maiden major trophy at the Australian Open in January, is now 49-5 for the season after an impressive 2024.

That run includes lifting a third ATP Masters 1000 crown in Cincinnati last week, where he overcame his next opponent Michelsen in the pair's only ATP Tour meeting to date.

Novak Djokovic was not at his best to start his US Open title defence, but still eased beyond Radu Albot in straight sets.

Djokovic, who is hunting his first grand slam title of the year on the back of claiming Olympic gold in Paris, won 6-2 6-2 6-4 on Sunday.

However, Djokovic was not at his best, making 40 unforced errors and 10 double faults.

"I wanted to kick start the tournament in the right way and I think I did," Djokovic told ESPN.

"Some ups and downs which I think is normal, getting the rust off your shoulders coming off a different surface and the Olympic Games.

"I haven't played on hard courts for six months, so I'm still finding that groove, finding the tempo on the court."

Next up for Djokovic, who would claim his 100th Tour-level title should he triumph in New York, is his compatriot Laslo Djere, who defeated Jan-Lennard Struff.

Data Debrief: Djokovic equals Federer

Only the great Jimmy Connors (98) has won more US Open singles matches than Djokovic, who claimed his 89th victory at Flushing Meadows to match Roger Federer's tally.

This was also Djokovic's 78th win at Arthur Ashe Stadium, a competition record for a male player.

Dominic Thiem's grand slam career ended in the first round of the US Open in a straight-sets defeat to Ben Shelton on Monday.

Thiem won his sole major at Flushing Meadows in 2020, coming from two sets down to beat Alexander Zverev with no crowd present due to the Covid-19 pandemic.

In what turned out to be his final appearance at a grand slam, Shelton cruised to a 6-4 6-2 6-2 victory, before the American led the crowd in a standing ovation for Thiem.

The Austrian has struggled with a wrist injury in recent years, and announced in May that he would be retiring at the end of the 2024 tour.

Thiem was the first Austrian player in the Open Era to receive a wildcard for the men's singles at the US Open, and the first to receive wildcards to multiple grand slam events after last year’s Australian Open

"It's actually a really important moment for me because I had my greatest success of my career here on this court, in a weird 2020 in very strange and different circumstances," Thiem told the crowd.

"I'm super happy that I got the chance to play my last US Open and I can spend some time with you guys, just to say thank you and to make the time up from what we missed four years ago."

Elsewhere, fourth seed Zverev, Andrey Rublev and 2022 finalist Casper Ruud were among the winners in the first round in New York.