Taylor Fritz will face Jannik Sinner in the US Open final after overcoming fellow American Frances Tiafoe in a five-set classic at Arthur Ashe Stadium.

Both men were looking to take a huge step towards ending the United States' 21-year wait for a male champion at Flushing Meadows, and it was Tiafoe who took the opener despite giving up an early break, hitting back with two of his own in the fifth and seventh games.

Fritz rallied to take the second set, but Tiafoe came on strong again in the third, harnessing the support of the crowd and using his power to dominate rallies.

An early break proved enough for Tiafoe to go 2-1 up, and he found himself two games from victory at 4-4 in the fourth set.

However, a missed forehand at deuce gave Fritz set point, and Tiafoe then failed with an attempted drop shot to let his opponent force a decider.

The momentum switched from then on, with Fritz never looking back. He hit a massive backhand winner in his first return game of the decider to break, and though he later let a double-break advantage slip with a double fault, that was a momentary blip as he ran away with the fifth set.

After the win, Fritz hailed his coach Michael Russell for the calming effect he was able to exert after a tough start to the encounter.

"I felt I wasn't doing anything wrong, I was just getting overwhelmed," Fritz said. "I was freaking out a little bit and he told me to keep doing what I was doing, accept it was okay and keep making him do it. That helped to calm me down and let me know I was doing the right thing."

Data Debrief: Fritz the late bloomer

Among male players representing the United States, Fritz – at the age of 26 years and 313 days – is the second-oldest in the Open Era to reach a maiden grand slam final, after MaliVai Washington (27 years, 15 days) at Wimbledon in 1996.

It took Fritz 33 main-draw campaigns to reach his first major final, with only David Ferrer (42), Stanislas Wawrinka (36) and Kevin Anderson (34) requiring more in the Open Era.

He could become the first home winner of the US Open since Andy Roddick in 2003 on Sunday, when he faces Sinner in the showpiece match.

Frances Tiafoe will face Taylor Fritz in the semi-final of the US Open, where there will be an American in the men's final for the first time in 18 years.

After Fritz overcame Alexander Zverev, Tiafoe faced Grigor Dimitrov in a bid to tee-up an all-American semi-final in New York.

And Tiafoe was 2-1 up in sets and 4-1 up in the fourth when Dimitrov was forced to retire due to injury.

That means there is guaranteed to be an American in the final at Flushing Meadows for the first time since Andy Roddick faced Roger Federer in 2006.

"I didn't want to end it like that, for me or the crowd. But Friday is going to be one hell of a day," said Tiafoe.

"It's the biggest match of mine and Taylor's life.

"Obviously, it's not the way I wanted to get through but being in another semi-final here is incredible."

Data Debrief: Fortunate sons

This is the first time two Americans have reached, and will face each other, in the last four of a grand slam since Andre Agassi went up against Robby Ginepri in 2005, at Flushing Meadows.

Indeed, the United States has not had a men's singles major champion since Roddick triumphed at the US Open in 2003.

Jannik Sinner won his fifth ATP tour title of the season on Monday, beating Frances Tiafoe in straight sets to win the Cincinnati Open.

The world number one took one hour and 37 minutes to earn his 7-6 (7-4) 6-2 victory, having battled through back-to-back three-setters in order to reach the final.

Sinner has been hampered by a hip injury, picked up during the Madrid Open in May, but rallied to get past the Frenchman.

"It was a very difficult week, tough week. I'm very happy about today's match," Sinner said in his on-court interview.

"It was very tough mentally. Had such an amazing run here, and I tried to do my best today.

"We both were quite tired from yesterday. We both felt a lot of tension, but I'm very glad about [the] level I played today, especially in the important moments."

There was little to separate the two in the first set, as they matched each other all the way to a tie-break, with Sinner eventually pulling in front to take the lead.

The Italian then got a vital break in the first game of the second set, taking confidence as he edged in front.

Tiafoe kept up the fight though, and successfully defended match point three times in the penultimate game, but he could only delay the inevitable as Sinner served to love in the last to get his hands on the trophy.

"It has been a tough week, some ups and downs, which is normal to have," Sinner added. "But how I handled the very important moments in each match, I'm very happy.

"I'm very happy to be in a position where I am and just trying to keep going mentally, having this hunger to keep playing, and hopefully, I can show some good tennis also in New York."

Data Debrief: Golden touch

Sinner has won his 15th career ATP title from 19 finals, equalling Carlos Alcaraz and Lleyton Hewitt (19). Only Rafael Nadal (17) has won more from his first 19 ATP event finals in the Open Era.

It is also his third ATP Masters 1000 title on hard court. In the past decade, only three players have won more Masters titles on the surface - Novak Djokovic (17), Roger Federer (seven) and Daniil Medvedev (five).

Frances Tiafoe "undoubtedly" has the potential to win a grand slam and do "something special" at Wimbledon, so says his former coach Zack Evenden.

Tiafoe surged into the world's top 10 in June after winning the Stuttgart Open, Tiafoe achieving a career-high ranking after his triumph in Germany.

Wimbledon will be the next challenge in Tiafoe's sights, with the 25-year-old looking to build upon his last-four appearance at the 2022 US Open – his best finish in one of the four majors.

Evenden oversaw Tiafoe's his first ATP title in 2018 before the pair parted ways three years later, and he sees no reason why the American cannot go all the way to glory.

Speaking to Stats Perform at the inaugural Tennis Black List at the LTA National Tennis Centre, Evenden said: "We worked together for four years and every day he stressed me out, but it was because I knew this was waiting at the end of the road and I know he's got much further to go.

"I think it's only a matter of time before he now figures out a way to get to the top five and then hopefully it's only a matter of time before that slam comes."

Asked whether Tiafoe had the ability to go all the way in a major, Evenden added: "Undoubtedly. That's no doubt, it's just a matter of when for me. I've never doubted that from him for a minute."

Evenden, who was replaced by former top-10 player Wayne Ferreira in 2021, believes Tiafoe's technique is perfectly suited for Wimbledon, where he faces Yibing Wu in his opening round on Tuesday.

He continued: "That quick whip take-back, short, compact backhand. He has got all the touch and all the feel.

"I think he's got so much potential on the grass. I've always thought that and I think that this year, we could see something special from him."

Pete Sampras won Wimbledon seven times across his illustrious career, while Andre Agassi triumphed once in SW19. Andy Roddick, meanwhile, reached three finals at the All England Club, and Evenden is confident Tiafoe can deal with the pressure of being compared to his compatriots.

"As with everyone, it takes a while for you to come to terms with the pressure and come to terms with the success too because it's hard winning because you got to sacrifice so much," he said. 

"Someone with such a personality like him, he's got to sacrifice more than other players. I think he deals with it very well.

"I think he's taken some huge steps in dealing with it and figuring out what works for him and what he needs to do. Obviously, he loves to show up at the big events. I think he's only going to get better."

America has not had a male grand slam singles winner since Roddick triumphed at the US Open back in 2003.

Daniil Medvedev and Stefanos Tsitsipas progressed to the third round of the Madrid Open but there was no such luck for Felix Auger-Aliassime on Saturday.

Second seed Medvedev cruised past Italian qualifier Andrea Vavassori 6-4 6-3, teeing up a meeting with Alexander Shevchenko, who overcame Jiri Lehecka in straight sets.

Tsitsipas was made to work by Dominic Thiem, but the fourth seed battling from a set down to win 3-6 6-1 7-6 (7-5).

World number 40 Dusan Lajovic provided the shock of the day by defeating seventh seed Auger-Aliassime 6-2 3-6 7-6 (7-5).

Denis Shapovalov, the 21st seed, was another surprise second-round loser, falling 6-7 (4-7) 6-4 7-6 (7-1) to China's Zhang Zhizhen.

Taylor Fritz avoided adding to the list of notable early eliminations in the Spanish capital, the eighth seed battling to a 7-6 (13-11) 6-4 victory over Christopher O'Connell.

Fritz's fellow American Frances Tiafoe progressed with a 6-3 7-6 (7-5) triumph over Argentina's Tomas Martin Etcheverry, while 14th seed Tommy Paul crashed out after a 6-3 7-6 (7-3) defeat to Roman Safiullin.

Seeds Alex de Minaur and Sebastian Baez also navigated their way through to the third round, defeating Marco Cecchinato and Marcos Giron respectively, as did Cameron Norrie at the expense of Yosuke Watanuki.

Top seed Frances Tiafoe won two matches in a day to progress into the Houston Open semi-finals, while five other seeds bowed out on a busy Saturday of action.

Persistent rain this week in Houston meant the past three days of play have not been completed forcing a massive pile-up of matches on Saturday with the conditions clearing up.

Tiafoe took on Steve Johnson in the morning, winning 6-2 6-4 in the second round, before toppling Australian sixth seed Jason Kubler 6-4 6-4 in the quarter-finals.

The American, who only had a break of two and a half hours between his two matches, said: "I haven’t played two matches in one day in a long time.

"I thought it was unbelievable how I was able to come out here and play so well."

Tiafoe will take on Dutchman Gijs Brouwer in the last four after he got past fourth seed John Isner 6-4 7-6 (7-4), before taking down fifth seed J.J. Wolf 6-3 6-4.

Second seed Tommy Paul was another fancied American to bow out on Saturday, losing 7-6 (8-6) 6-2 to German qualifier Yannick Hanfmann in the second round.

Hanfmann progressed to the semi-finals where he will face Argentinian eighth seed Tomas Martin Etcheverry, with the German getting past Czech qualifier Tomas Machac 6-2 6-1.

Machac had bundled out American seventh seed Marcos Giron 6-4 6-4 in the second round.

Etcheverry progressed with victories over Australia's Max Purcell and Chile's Cristian Garin, winning the latter 6-1 6-7 (2-7) 6-3 in more than two and a half hours.

Wednesday's play was rained out at the Houston Open with only one set completed, while third seed Brandon Nakashima withdrew from the event.

Persistent rain forced an early abandonment of action on the clay courts in Houston, with all eight second-round matches pushed back to Thursday.

Max Purcell's clash with Daniel Altmaier was the only match to get underway, with the Australian leading 6-4 before rain intervened.

Top seed Frances Tiafoe was due to open his campaign against Steve Johnson, with second seed Tommy Paul to face Yannick Hanfmann.

Nakashima's withdrawal for an undisclosed reason meant lucky loser Zizou Bergs will replace him and take on Cristian Garin.

Sixth seed Jason Kubler made light work of 39-year-old Spaniard Fernando Verdasco in the first round of the Houston Open while Americans Steve Johnson and Denis Kudla advanced on Monday.

Kubler and Verdasco endured a 71-minute first-set tussle, which the Australian edged 9-7 in a tie-break before dominating the second frame, dishing out a bagel in 29 minutes to win 7-6 (9-7) 6-0.

World number 71 Kubler progressed to the second round where he will take on Colombia's Daniel Elahi Galan who defeated China's Zhang Zhizhen 6-2 6-3.

Johnson set up a second-round clash with American compatriot and top seed Frances Tiafoe after getting the better of Facundo Bagnis 7-6 (7-5) 1-6 6-1 in one hour and 55 minutes.

USA's Kudla also progressed with a hard-fought 6-4 4-6 6-4 victory over Australia's Aleksandar Vukic in just under two hours.

Dutchman Gijs Brouwer won 6-4 6-4 over Aleksandar Kovacevic, setting up a meeting with big-serving fourth seed John Isner.

Carlos Alcaraz is eagerly anticipating an Indian Wells Open final against "the best tennis player in the world" Daniil Medvedev and expects a long-lasting rivalry with downed opponent Jannik Sinner.

Spaniard Alcaraz defeated Italian Sinner 7-6 (7-4) 6-3 in California to reach his first Indian Wells final and move within one win of a return to the top of the ATP World Rankings.

Standing in his way is the in-form Medvedev, who owns a 19-match unbeaten run and has won three straight titles.

The two have only met once competitively, with Medvedev winning in straight sets at Wimbledon in 2021 and Alcaraz always wants to challenge himself against the elite on tour.

"I really want to play against the best tennis player in the world," Alcaraz said. 

"I always say that if you want to be the best, you have to beat the best, and I would say that Daniil is the best player right now, amazing winning streak.

"For me, it's going to be a really difficult challenge but I'm really prepared for that. I will summon my best tomorrow in the final."

Against Sinner, Alcaraz overcame an opponent with whom he is developing quite the budding rivalry.

It was their fifth career showdown and the first time they had met since Alcaraz won a marathon US Open quarter-final, a match that finished at 2.50am local time – the latest ending at the New York major.

"I would say we're going to have a great rivalry over the years. We are playing in the best tournaments in the world. It's not over here. We are going to play a lot of great matches," Alcaraz added.

"All I can say is I'm really happy with my first final here in Indian Wells.

"Playing against Jannik is never easy. I had to overcome a little bit of problems. I had set point down. 

"I knew that I had to increase my level to [beat] Jannik. It was a really close first set. In the second set I put out all the nerves and played more relaxed. I think it was the key of everything."

Medvedev will also play in his first Indian Wells final after defeating Frances Tiafoe 7-5 7-6 (7-4) in the other semi-final.

Medvedev has won in Rotterdam, Doha and Dubai and will be the first man to win four titles in five weeks since Andy Murray in 2016 if he can down Alcaraz.

Against Tiafoe, the Russian put in a great showing but let slip seven match points and was broken twice when serving for the match.

"It was crazy at the end," said Medvedev. "I got super tight. I would say that [after] 6-5, 40-0, I think I got tight at deuce when I was like, 'Oh my god, that's a lot of opportunities missed, this could go not well for me'. 

"So, I got really tight, [but] I still managed to continue playing good. The ace [on match point] was a relief, I’m just really happy that I managed not to lose this match."

Carlos Alcaraz qualified for his third final from three events this season and moved within one win of re-claiming the world number one ranking after beating Jannik Sinner in the Indian Wells Open semi-finals on Saturday.

The 2022 US Open champion triumphed 7-6 (7-4) 6-3 over the Italian 11th seed in one hour and 54 minutes.

Alcaraz is into his maiden Indian Wells final, having lost last year's semi-final to Rafael Nadal, while it is his third career Masters final.

The Spaniard will re-claim the top rank from Novak Djokovic with victory in the decider where he will face in-form fifth seed and 2021 US Open winner Daniil Medvedev who beat Frances Tiafoe 7-5 7-6 (7-4) on Saturday in 108 minutes.

Alcaraz had missed three months due to abdominal and hamstring injuries but continued his excellent return in Indian Wells, after winning the Argentina Open and making the Rio Open decider last month.

The top seed hit 26-14 winners against Sinner, including 17 on his forehand, while he capitalised on the Italian's 50 per cent first-serve percentage, attacking his second serve and converting two of six break points.

Medvedev earned a berth in his maiden Indian Wells decider with his triumph over 14th seed Tiafoe extending his winning streak to 19 games.

The Russian is into an ATP Tour-best fourth final for the season, following victories at the Dubai Tennis Championships, Qatar Open and Rotterdam Open in February.

While Alcaraz is within one victory of the number one ranking, Medvedev can become the first male since Andy Murray in 2016 to win four titles in five weeks.

Medvedev even let slip seven match points against Tiafoe and was broken twice when serving for the match at 5-4 and 6-5 before converting his first match point in the tie-break.

The world number six has maintained his top form despite rolling his ankle in his fourth-round win over Alexander Zverev, showing no signs of injury since.

Fifth seed Daniil Medvedev brushed off an ankle concern and booked his spot in the Indian Wells Open semi-finals after a straight-sets win over Alejandro Davidovich Fokina on Wednesday.

The 2021 US Open champion triumphed 6-3 7-5 over the Spaniard in one hour and 44 minutes, securing his 18th straight victory.

Medvedev will face Frances Tiafoe in the semi-finals after the American beat Briton Cameron Norrie 6-4 6-4 in the other quarter-final in that half of the draw.

The Russian had suffered an ankle injury during Tuesday's last-16 win over Alexander Zverev but played on to clinch a hard-fought three-set win.

But Medvedev alleviated any injury concerns, although he required treatment on a bloody right thumb in the second set while escaping from 0-40 at 3-4.

"I'm actually happy the ankle didn't hurt much because when I warmed up, it was hurting pretty bad," Medvedev said post-match.

"I knew I was going to play, I knew I was going to try. But I couldn't move well on the warm-up. I tried to warm it up as long as possible, took one painkiller so that probably helped. I was actually feeling better and better during the match."

Medvedev raced to a 3-0 lead in the first set and never looked back, although Davidovich Fokina fought hard in the second frame but missed his big chance in the eighth game.

The pair both hit 24 winners for the match, but the Spaniard's 24 unforced errors compared to Medvedev's 12 was a key difference.

Tiafoe, who made last year's US Open last four, awaits after needing only one hour and 25 minutes to eliminate 2021 Indian Wells champion Norrie and reach his maiden ATP Masters 1000 semi-final.

Norrie had been on an eight-match winning run but the American hit 22 winners and only gave up nine unforced errors.

Top seed Carlos Alcaraz moved into the Indian Wells Open quarter-finals after Jack Draper retired down 6-2 2-0 due to an abdominal injury in their last-16 clash on Tuesday.

Alcaraz was in control, winning the first set in 36 minutes before racing to a 2-0 lead inside 10 minutes before the Briton withdrew. Draper had battled the injury in the latter stages of Monday's win over Andy Murray.

Despite that, the Spaniard looked in good touch, setting up a quarter-final meeting with eighth seed Felix Auger-Aliassime, who has a 3-0 head-to-head record against him.

"I felt the ball really well. I'm really happy with that part," Alcaraz said. "I would say I returned well, I hit great shots. I finished the match with confidence in my shots, to come into the next round with more confidence."

Auger-Aliassime saved six match points in a dramatic triumph over 17th seed Tommy Paul to reach the last eight, winning 3-6 6-3 7-6 (8-6) in two hours and 48 minutes.

The Canadian trailed 0-40 on serve at 5-6 in the deciding set before winning the next five points. He repeated that feat, down 3-6 in the tie-break, capitalising on his first match point. Auger-Aliassime hit 31 winners for the match, along with 51 unforced errors.

Fifth seed Daniil Medvedev fought back from a set down and a rolled ankle to progress past Alexander Zverev 6-7 (5-7) 7-6 (7-5) 7-5 in three hours and 10 minutes.

Medvedev rolled his ankle in the sixth game of the second set, going down in pain but played on, in his longest-ever three-set match. The victory is the Russian's 17th in a row. Zverev committed 50 unforced errors across the match.

The Russian will take on Alejandro Davidovich Fokina in the last eight, with the Spaniard winning 6-3 6-4 over Chilean qualifier Cristian Garin.

Jannik Sinner cruised past Stanislas Wawrinka 6-1 6-4 in one hour and 39 minutes to move into the last eight where he will face reigning champion Taylor Fritz. The American won 6-4 6-3 over Hungary's Martin Fucsovics in one hour and 41 minutes.

British 10th seed Cameron Norrie will play 14th seed Frances Tiafoe in the other quarter-final, with the former winning 6-2 6-4 over the higher-ranked Andrey Rublev. Tiafoe won 6-4 6-4 over Alejandro Tabilo in 83 minutes for his 150th career win.

World number three Stefanos Tsitsipas has left the Indian Wells Masters without a win after a shock 7-6 (7-0) 4-6 7-6 (7-5) loss to Jordan Thompson on Friday.

Tsitsipas, the second seed with Novak Djokovic not present, received a bye through to the second round, and he showed some rust with three double faults in the opening set. 

Thompson capitalised, with an incredible 21 winners to only two unforced errors in the first set, and he closed it out with 15 winners and four unforced errors in the deciding frame for the biggest win of his career.

The Australian will now meet Chile's Alejandro Tabilo in the third round after he upset 32nd seed Maxime Cressy in a gruelling 7-6 (7-3) 7-6 (15-13) triumph.

Meanwhile, it was smooth sailing for third seed Casper Ruud in his 6-2 6-3 victory over Diego Schwartzman, and a similar story for fifth seed Daniil Medvedev in his 6-4 6-3 result against Brandon Nakashima.

Alexander Zverev, the 12th seed, had no issues in his 6-3 6-1 domination of Pedro Cachin in 77 minutes, and 13th seed Karen Khachanov also took exactly 77 minutes to see off Oscar Otte 6-3 6-3.

England's 10th seed Cameron Norrie breezed past Tung-lin Wu 6-2 6-4, while Italy's 20th seed Matteo Berrettini suffered an early 7-6 (7-5) 0-6 6-3 exit at the hands of Japan's Taro Daniel.

In the late window, after a lengthy weather delay, 14th seed Frances Tiafoe won his all-American showdown against Marcos Giron 6-2 6-2.

World number five Taylor Fritz showed why he is the highest seed still standing at the Mexican Open after a strong 6-3 6-4 win in Thursday's quarter-final.

Fritz, the third seed, faced sixth seed and world number 15 Frances Tiafoe, and did not allow a single break of serve en route to the 96-minute victory.

He will now face compatriot Tommy Paul in an all-American semi-final after the world number 23 prevailed 6-2 6-2 against Mackenzie McDonald.

The win was Paul's 10th from his past 12 matches, with one of those two losses coming against Novak Djokovic.

Australia's Alex De Minaur is through to the other semi-final after making light work of Japan's Taro Daniel 6-2 6-2 in a surprisingly one-sided contest, considering Daniel was coming off a victory over world number four Casper Ruud.

De Minaur will face Holger Rune after the 19-year-old capitalised on Matteo Berrettini not being at 100 per cent, jumping out to a perfect 6-0 1-0 start before the Italian retired hurt.

Meanwhile, Chile Open second seed Francisco Cerundolo missed out on a potential chance to face his younger brother after going down 6-3 3-6 6-3 against Tomas Martin Etcheverry.

He was one win away from doing his part to set up a quarter-final showdown with Juan Manuel Cerundolo, but the 21-year-old Argentine also did not hold up his end of the bargain, falling 6-2 2-6 7-6 (7-2) to Serbia's Dusan Lajovic.

Laslo Djere ensured it would be a good day for the Serbians with a 7-5 7-5 handling of Italy's Riccardo Bonadio, and he will face third seed Sebastian Baez in the quarter-final after he eliminated hometown hero Cristian Garin 6-4 6-3.

Second seed Casper Ruud suffered a shock three-sets second-round defeat to Japan's Taro Daniel at the Mexican Open in Acapulco on Wednesday.

The 2022 US Open and French Open runner-up had struggled past Guido Andreozzi in the first round and followed up that up with a 7-5 2-6 7-6 (7-5) loss to Daniel.

The Japanese qualifier, ranked 125th in the world, won in just under three hours, winning the final three points of the deciding tie-break after Ruud led 5-4.

Ruud had more winners (38-32) but committed 30 unforced errors compared to Daniel's 12.

Taylor Fritz cruised into the last eight with a 6-4 6-4 win over Canada's Denis Shapovalov, setting up a quarter-final with sixth seed Francis Tiafoe, who eased past Feliciano Lopez 6-2 7-6 (8-6).

Fourth seed Holger Rune was too strong for Nuno Borges 6-0 6-2 inside an hour, while eighth seed Alex De Minaur crushed Jacopo Berrettini in just over an hour 6-1 6-0.

Top seed Lorenzo Musetti was a surprise second-round loser at the Chile Open with Jaume Munar triumphing 6-4 6-4 in one hour and 31 minutes.

Fourth seed Diego Schwartzman also bowed out, going down 6-4 4-6 7-6 (7-2) to local Nicolas Jarry.

Jarry will face Yannick Hanfmann in the quarter-finals, while Munar will take on Thiago Monteiro.