Alexander Zverev had "no answers" as he lamented a dismal display in his US Open loss to Taylor Fritz.

Fritz downed Zverev 7-6 (7-2) 3-6 6-4 7-6 (7-3) in the last eight on Wednesday.

In the process, Fritz reached his maiden grand slam semi-final, and will face fellow American Frances Tiafoe for a place in the showpiece match at Flushing Meadows.

World number four Zverev, meanwhile, had to lick his wounds after what he labelled a "terrible" performance.

“I played terrible," said Zverev.

"I just have no answers right now. He played quite a good match. I did nothing to deserve to win."

Matters could have not been more different for 12th seed Fritz, however.

"I feel amazing," he said. "I've had a lot of looks at quarter-finals in the past couple of years, and today just felt different.

"I really feel that it was my time to take a step further and it;s only fitting I'm doing it here on this court at the [US] Open in front of this crowd.

"Today just felt different. I really felt like it was my time to go a step further. It's only fitting I'm doing it here on this court, at the Open, in front of this crowd."

With Tiafoe also progressing to the last four, it will be the first time two Americans have played each other in the US Open semi-finals since 2005.

The last time an American man reached the final at Flushing Meadows was in 2006, when Andy Roddick lost to Roger Federer in 2006.

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 the 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 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 was proud of overcoming a "difficult moment" to reach the Cincinnati Open final after dramatically outlasting Alexander Zverev in a third set tie-break. 

Sinner, who was seen visibly struggling with a hip injury for parts of the contest, eventually emerged a 7-6 (11-9) 5-7 7-6 (7-4) victor in over three hours in Ohio. 

The world number one picked up the injury in Madrid back in May, further aggravating it in his shock quarter-final defeat by Andrey Rublev at the Canadian Open. 

"It means a lot to me. It's a very different moment, what I'm going through, so I'm very happy about this result," Sinner said in an on-court interview.

"The physical aspect, of course, I have to improve, because if I want to win grand slams or a bigger title, I have to be, for sure, more in shape.

"But I just tried to stay there mentally, which I'm very proud (of), and let's see what's coming tomorrow."

Zverev started brightly and was three points away from serving out the opening set until the Italian levelled at 5-5, only for rain to interrupt play. 

Sinner returned to claim the early advantage, only for Zverev, who had won all four of their previous encounters, to respond in the second to take the game the distance.

Neither player faced a break point in the decider, but it was Sinner who took control of the tie-break, dropping just one point on serve as the triumph was sealed when Zverev sent a backhand long. 

The world number one will face Frances Tiafoe, who reached his maiden ATP Masters 1000 final after defeating 15th seed Holger Rune in three sets. 

Data Debrief: Sinner continue hard court dominance

Sinner's triumph saw him become the first Italian in the Open Era to reach the men's singles final at the Cincinnati Open, and the first since 1973 to claim 5+ ATP top five wins in consecutive seasons.

Since the start of the 2023 season, Sinner has won 15 of his 20 matches on hard court against opponents ranked in the ATP’s top five.

World number two, Novak Djokovic (six), has the next-most over that span on the surface.

Alexander Zverev claimed his 50th tour-level win of the season with a straight-sets victory over Karen Khachanov in the Cincinnati Open on Thursday.

The German took just 76 minutes to ease into the next round, earning a 6-3 6-2 win while coping with a second-set rain delay.

Zverev fought back from break point in the third game to set him up for a vital break in the sixth as he took the first set.

And he raced into a 3-0 lead in the second against a spirited Khachanov, who just could not find any answers to his aggressive approach as the world number four hit 16 winners compared to the Russian's nine.

He will now play either Max Purcell or Pablo Carrena-Busta for a place in the quarter-final.

Data Debrief: Fifty up for Zverev

It is an impressive landmark for Zverev to hit, but he is also the first to register 50 wins at ATP events in 2024.

It is the fifth time the 27-year-old has won 50+ matches in a single season, and he is just the second German to do so during the Open Era, after Boris Becker.

Sebastian Korda booked his place in the semi-finals of the Canadian Open after knocking out number two seed Alexander Zverev in three sets.

The American egded the entertaining clash in a third-set decider, eventually emerging a 7-6 (7-5) 1-6 6-4 victor in two hours and 19 minutes on Court Central. 

Zverev started the encounter in Toronto on the front foot, earning a break of serve in the second game as he raced into a 3-0 lead early on. 

However, his American opponent would fight back, winning three games in row to level the scores, maintaining his momentum to triumph in a first-set tiebreak. 

But Zverev would respond emphatically, however, cruising through the second set without breaking a sweat to take the pairs first ever encounter the distance. 

Korda and Zverev would hold their respective serve, but the German would be the first to blink, losing the ninth game on serve to hand his opponent the advantage. 

And the American would grasp the opportunity with both hands, ending the encounter with a fierce serve as Zverev sent the ball high and and long. 

Korda will face the winner of Hubert Hurkacz and Alexei Popyrin for a place in Monday's final. 

Data Debrief: Korda continues impressive run

Korda can't stop winning at the moment, with his success in Toronto making it the fouth consecutive semi-final he has reached in as many events. 

The world number 18 won 11 of his 15 service games, also saving five of the nine break points he faced in Toronto. 

Daniil Medvedev suffered a rare hard-court loss to an opponent outside the world's top 20 as Alejandro Davidovich Fokina sent him crashing out of the Canadian Open in the last 32.

Third seed Medvedev was beaten 6-4 1-6 6-2 by world number 43 Davidovich Fokina, the Spaniard coming through a one-hour, 56-minute contest in Montreal.

Davidovich Fokina, who reached the semi-finals of the tournament in 2023, will now face either Karen Khachanov or Matteo Arnaldi for a place in the quarter-finals.

It was only Medvedev's third hard-court defeat to an opponent ranked outside the ATP's top 20 since the start of 2023, with the others both coming against Sebastian Korda.

Medvedev was not the only player to be on the receiving end of an upset on Thursday, as Japan's Kei Nishikori beat Stefanos Tsitsipas 6-4 6-4 for his first top-20 win since 2021.

However, things were far more comfortable for world number four Alexander Zverev, who crushed Jordan Thompson by a 6-1 6-1 scoreline to reach the third round.

Zverev won a huge 95% (18/19) of points behind his first serve, also slamming 20 winners past Thompson, who had previously led the duo's head-to-head series 2-1.

Lorenzo Musetti ended Alexander Zverev's Olympic gold-medal defence in straight sets to book a place in the semi-finals.

The Italian was pushed all the way, but held strong to prevail 7-5 7-5 in just over two hours at Roland-Garros.

Zverev knew he was in for a tough day from the start, losing his serve in the opening game, and though he managed to claw back to draw 5-5, Musetti got another vital break to take the first set.

The pair matched each other throughout the second, but Musetti eventually found his edge with a three-game winning run when it mattered and wrapped up the match by serving to love.

He will face either former world number one Novak Djokovic or Greece's Stefanos Tsitsipas in the next round.

Data Debrief: Musetti comes out on top

It was just the second-ever meeting between Musetti and Zverev, with the first coming to an early end when he had to retire through injury in Madrid in 2022.

He put that right today though, and becomes just the third Italian player to reach the men's singles semi-finals at the Olympics in history after Uberto De Morpurgo (Paris 1924) and Paolo Cane (Los Angeles 1984).

Alexander Zverev is confident of claiming a second Olympic gold medal at the Paris games despite picking up an injury at Wimbledon earlier this month. 

Zverev slipped during his third-round triumph against Cameron Norrie in SW19, bowing out of the competition in a five-set to Taylor Fritz in the following round. 

The world number four has since competed in the Hamburg Open, a title he won a year ago, but fell at the final hurdle to Arthur Fils in a decisive final set tie-break. 

Zverev, who became the first German to win an Olympic gold medal in singles since Steffi Graf did so in 1988, beat Karen Khachanov in the final in Tokyo four years ago.

The German described his injury as a bone edema and torn capsule and said that it did not require surgery ahead of the games. 

"To be honest, you know, the risk will stay for the next two, three, four weeks maybe because that's how long the bone heals, and that's what everybody told me," Zverev said.

"But, at the end of the day I also knew that I don't want to rest for four weeks because, now we're playing on the surface where I don't see that big of a risk of doing the same motion again and doing the same movement again."

The tennis will take place at Roland Garros, a venue well-known to Zverev who reached the French Open final earlier this year, losing out on a first grand slam title to Carlos Alcaraz in five sets. 

Zverev is also on the shortlist of German athletes who could be flagbearer for the nation during Friday's opening ceremony.

"If someone told me that I should walk in as a flag bearer, it would mean even more to me, to be honest (than winning the Olympics)," Zverev was quoted by SpilXperten.

"Leading an entire nation and so many top German athletes into the Olympics is simply the greatest honour an athlete can receive.

"And of course, the gold medal I won at the last Olympics is one of the highest achievements you can have in sports and for me personally the greatest success in my career."

Arthur Fils came through a decisive tie-break to beat home favourite Alexander Zverev in the Hamburg Open final, securing his second ATP-level title.

The 20-year-old triumphed 6-3 3-6 7-6 (7-1) in a three-and-a-half-hour marathon, saving a remarkable 21 of 22 break points, including five in the final set, to follow up his 2023 triumph in Lyon.

Fils raced into a 3-0 lead in the opener before having to fend off four break points in the fifth game as he took the lead, but defending champion Zverev roared back in the second set.

Zverev got the breakthrough six games into a back-and-forth second as the big-serving German forced a decider.

Having saved break points at 4-4 and 5-5 in the third, Fils came on strong in the tie-break, recording the biggest win of his career and his fourth versus a top-10 opponent.

Data Debrief: Fils' rise continues as Zverev falls short

Fils is just the second player aged under 21 to triumph at the Hamburg Open, after Roger Federer in 2002 and Lorenzo Musetti in 2022. 

Zverev, meanwhile, missed the chance to become the fifth man to defend the Hamburg title in the Open Era, after Eddie Dibbs (1973-74), Andre Medvedev (1994-95), Federer (2004-05) and Nikoloz Basilashvili (2018-19).

Alexander Zverev will have a chance to defend his Hamburg Open title against Arthur Fils after overcoming Pedro Martinez in the last four on Saturday.

Zverev needed one hour and 25 minutes on court to beat Martinez 6-2 6-4, ending a run that saw the Spaniard eliminate seeds Matteo Arnaldi and Francisco Cerundolo.

The home favourite earned his first break in the third service game and followed up with another in the seventh, also winning 92% of his first-serve points in the opener as Martinez failed to apply any sustained pressure.  

Zverev broke again at the start of the second set before producing crucial holds in the second and seventh games, reaching his third straight clay-court final after also going all the way at the Masters 1000 in Rome and the French Open.

He will face Fils in the showpiece match after the Frenchman overcame Sebastian Baez by a 6-2 6-2 scoreline in just 67 minutes, reaching his first ATP 500 final.

Data Debrief: Zverev eyes Hamburg history

Zverev became just the second German to win the Hamburg title last year after Michael Stich in 1993, and he could now become the first to defend the trophy with Stich falling to Yevgeny Kafelnikov in the 1994 semi-finals.

Alexander Zverev booked his place in the Hamburg Open semi-finals with a straight-sets victory over Zhizhen Zhang.

The top seed - and reigning champion - kept his title defence very much on track, prevailing 6-4 6-3 after 66 minutes on Center Court.

Zverev dominated on serve during the opening set, dropping just three points, while a break in game five paved the way for him to move halfway towards victory.

The home favourite made another statement of intent when he broke in the opening game of the second set.

Another break followed at 5-3 to secure victory and send the Italian Open champion through to his seventh ATP semi-final of the season - and third on clay, having also reached the French Open final.

There, he will play Pedro Martinez after the Spaniard beat fourth seed Francisco Cerundolo in three sets.

Data Debrief: Statement of intent from Zverev

The German demonstrated his desire to maintain his hold on the trophy he won in front of his home crowd last season, and become only the third player this century to successfully defend the crown after Roger Federer and Nikoloz Basilashvili.

Indeed, Zverev hit 10 aces and won 29 of 33 points on first serve (88%), while converting three of his four break-point opportunities.

Alexander Zverev cruised into the second round of the Hamburg Open with a comfortable straight-sets victory over Jesper de Jong.

The top seed took one step closer to defending his title with a 6-2 6-2 victory on Wednesday.

De Jong took the opening game, but Zverev dominated after that, winning the next five in a row, before holding off the Dutchman's late fightback to take the first set.

The second was a carbon copy of the first, as De Jong was broken twice and given no way back in as Zverev closed out the match to set up a meeting with Hugo Gaston in the next round. 

Data Debrief: Defending champion starts strong

After clinching the title on home soil last year, Zverev was always going to come out fighting in his defence.

He hit 29 winners and twice went on five-game winning runs to take the match away from De Jong before he could get any real foothold. 

Taylor Fritz fought from behind to win a five-set thriller against Alexander Zverev on Centre Court, reaching the Wimbledon quarter-finals for the second time.

Fritz, who previously made the last eight in 2022, was on the brink of defeat as a typical big-serving display from Zverev saw him take the first two sets.  

However, the match turned on a fourth-set tie-break dominated by the American, Zverev losing his way as he missed out on a first quarter-final appearance at SW19, losing 4-6 6-7 (4-7) 6-4 7-6 (7-3) 6-3.

The Centre Court crowd had to remain patient for a break in the opening set with both players excellent with ball in hand, Zverev winning 83% of his first-serve points to Fritz's 81%. A powerful backhand ensured it was Zverev who got the breakthrough nine games in.

Neither player could force a break point in a slog of a second set, which Zverev took in a tie-break, roaring to the crowd as Fritz sliced a backhand wide on set point. 

But Fritz refused to go away, drawing Zverev to the net far more regularly and finally breaking the German's serve at the 15th attempt. 

It was a similar story in the fourth as both players served well, but Fritz stepped up in the tie-break, Zverev looking dejected as he fell 6-1 down before slicing a backhand long on set point.  

The momentum was with Fritz from there as he secured a huge break four games into the decider, holding his nerve from there to tee up a meeting with first-time grand slam quarter-finalist Lorenzo Musetti.

Earlier on Monday, Alex de Minaur sealed his place in the last eight – where he will face Holger Rune or Novak Djokovic – with a 6-2 6-4 4-6 6-3 victory over Arthur Fils.

Ninth seed De Minaur squandered a 4-2 lead in the third set but recovered to take the match in four, his flat groundstrokes proving too much for spirited 20-year-old Fils.

The Australian suffered a scare as he appeared to hurt his ankle on match point, but he played down fears over his condition after the match. 

"I will be alright, I will find a way," he said. "I made it a lot harder than I should have but I'm happy to get through."

Data Debrief: Rare upset for Fritz 

Fritz showed great character to hold firm in the face of Zverev's big-serving display before launching a rousing comeback in front of a delighted Centre Court crowd.

He previously held a 1-13 record against top-10 opponents at grand slams, but he has now become the first American to reach the quarter-finals at the Australian Open and Wimbledon in a single year since Andy Roddick in 2009.