Alexander Zverev won his 16th match in a row with a straight-sets victory over Lloyd Harris on Wednesday to reach the US Open semi-finals.

The fourth seed saved a set point from Harris in a tense opener and built on that to earn a 7-6 (8-6) 6-3 6-4 triumph in a little over two hours.

Zverev has dropped just one set across his five matches at Flushing Meadows this year and will face either Novak Djokovic or Matteo Berrettini as he seeks a place in back-to-back finals.

"I just hope their match goes on for eight hours and 30 minutes," Zverev joked when asked who he would prefer to face in the semi-finals.

"I didn't have a lot of chances on Harris' serve today and somehow managed to win that first set, which loosened me up a little bit and I started playing a lot better.

"In the third set, he started swinging. He started playing incredible tennis. So yeah, I'm happy to be through in three."

Harris beat three top-30 seeds to make it to this stage and more than held his own in the opening set against Zverev, who lost to Dominic Thiem in last year's final.

After sharing a break of serve apiece, Harris led 6-5 in the tie-break but lost the next three points to offer his opponent a platform to build from.

Despite struggling with a minor back problem, Zverev took advantage of his unseeded opponent's five unforced errors by holding throughout the second set.

The four-time grand slam semi-finalist raced into a 4-0 lead in the third set, but Harris slowly regained his composure and claimed the next three games.

Zverev's monster serve came to his rescue, however, as he took the eighth game and eased over the line in style with his 21st ace of the contest.

 

DATA SLAM

Zverev did not have things all his own way as he struggled in the opening set and was sloppy when leading 4-1 in the final set, but he ultimately proved too strong for an opponent ranked 46th in the world.

Last year's beaten finalist Zverev has served 83 aces and just 15 double faults across his first five matches and won 82 per cent of his first-serve points against Harris. Whether it is Djokovic or Berrettini, a tougher test awaits in the semi-finals.


WINNERS/UNFORCED ERRORS

Zverev – 43/26
Harris – 34/26

ACES/DOUBLE FAULTS

Zverev – 21/5
Harris – 13/1

BREAK POINTS WON

Zverev – 4/9
Harris – 2/3

Canadian 12th seed Felix Auger-Aliassime feels "ready to attack the biggest stages" of tennis after becoming the first male player born in the 2000s to reach a major semi-final.

Auger-Aliassime advanced to face second seed Daniil Medvedev in the semi-finals on Friday after a 6-3 3-1 walkover win over Spanish teenager Carlos Alcaraz who succumbed to an upper right leg injury after back-to-back five-set wins.

The 21-year-old Canadian, whose previous best performance at a major was reaching this year's Wimbledon quarter-finals, has defeated Alcaraz, Francis Tiafoe and 18th seed Roberto Bautista Agut on his way to the last four.

Prior to this year's Wimbledon, Auger-Aliassime had never gone beyond the fourth round at a major.

"There's one part, I'm feeling more and more confident playing in these big stages," he told ESPN. "It doesn’t get much bigger than this. When you get comfortable on this court [Arthur Ashe Stadium], everything else is a bit lower.

"I've tried to switch my mentality over the past year to try to be more consistent with my focus, my confidence and my inner self belief. I feel I've grown a lot as a person and a player and now I feel like I'm ready to attack the biggest stages of our sport."

Auger-Aliassime labelled the career milestone as "amazing", albeit coming with a "weird ending" as Alcaraz retired without any major signs of injury beforehand.

The Canadian will take on 2021 Australian Open runner-up Medvedev, who defeated Auger-Aliassime in their only previous meeting in 2018.

"He's one of the best players, he's the most solid on hard courts probably right now with [Alexander] Zverev and Novak [Djokovic]," Auger-Aliassime said during his on-court post-match interview.

"I'm going to have to play my best tennis, try to mix things up, maybe come in a lot, try to see what I can do to disturb him."

Auger-Aliassime's triumph also means two Canadians have reached the men's and women's semi-finals at the same major for only the second time, following Milos Raonic and Eugenie Bouchard at Wimbledon in 2014.

He joins Canadian teenager Leylah Fernandez who defeated fifth Elina Svitolina in three sets to continue her dream run at the US Open reaching the last four.

"It's fantastic. She's amazing," Auger-Aliassime said about 19-year-old Fernandez. "I watched her match again today, I really hope the best for her.

"She's a great person, she's got great heart. I'm really happy all her hard work is paying off. I hope we keep going."

Canadian 12th seed Felix Auger-Aliassime has progressed to his first-ever major semi-final after Spanish teenager Carlos Alcaraz's shock withdrawal in the second set of their US Open quarter-final.

Alcaraz, who had won back-to-back five-setters to reach the last eight, retired 68 minutes into Tuesday's quarter-final trailing 6-3 3-1.

The result means Auger-Aliassime, who has never won an ATP Tour title, will take on second seed Daniil Medvedev in the semi-finals on Friday.

The Spanish 18-year-old was attended to by a physiotherapist 2-1 down in the second set and was seen pointing to his upper right leg without receiving any discernible treatment.

Alcaraz had not shown any major signs of injury prior to that yet withdrew following the completion of the next game with the Canadian in control.

Beyond the unusual circumstances, the victory marks a major milestone for 21-year-old Auger-Aliassime, who joins countrywoman Leylah Fernandez in reaching this year's US Open semi-finals.

This marks the second time that two Canadians have reached the semis in the same grand slam, joining Milos Raonic and Eugenie Bouchard at Wimbledon in 2014.

Auger-Aliassime, whose best previous major result was reaching this year's Wimbledon quarter-finals, was strong on his first serve early, delivering 6-1 aces in the first set.

Leading 3-2, the Canadian broke Alcaraz at the third attempt, before both players held to give Auger-Aliassime the chance to serve for the set at 5-3.

In a dramatic game, Auger-Aliassime offered up three break points trailing 0-40, only to rally and win the game to close out the set in 44 minutes, aided by 12 winners.

The 21-year-old broke Alcaraz in the first game of the second set, before Alcaraz's premature retirement, handing the Canadian victory.

Data Slam: First of a new men's generation

Auger-Aliassime becomes the first male born in the 2000s to reach a Grand Slam semi-final, marking a new generation in men's tennis.

WINNERS/UNFORCED ERRORS

Auger-Aliassime – 15/16

Alcaraz – 9/16

ACES/DOUBLE FAULTS

Auger-Aliassime – 8/4

Alcaraz – 1/1

BREAK POINTS WON

Auger-Aliassime – 2/7

Alcaraz – 0/3

Second seed Daniil Medvedev refuses to start thinking about a US Open final against Novak Djokovic despite reaching his third straight semi-final at Flushing Meadows on Tuesday.

Medvedev dropped a set for the first time at this year's US Open but still got through, winning 6-3 6-0 4-6 7-5 over Dutch qualifier Botic van de Zandschulp on Tuesday.

The 25-year-old will play the winner of the quarter-final between Canadian 12th seed Felix Auger-Aliassime and Spanish teenager Carlos Alcaraz in the last four.

Top seed Djokovic, who has won all three majors this year, looms on the other side of the draw, with a quarter-final match-up on Wednesday against sixth seed Matteo Berrettini, while fourth seed Alexander Zverev is still alive.

"I don't think about him [Djokovic], because as we saw, anybody can beat anybody," Medvedev said at his post-match news conference.

"If he's in the final, and if I'm there, I'm happy. He plays on the days where I don't play so I watch his matches just because I enjoy watching tennis.

"I'm not going to root or cheer for somebody. I'm just gonna enjoy the tennis and then prepare for the winner. It's same every match."

Medvedev's victory clinches his spot in the final four at Flushing Meadows for the third straight year, having lost the 2019 final to Rafael Nadal.

"[I'm] really happy to be in the semis again, third time in a row," Medvedev said. "I couldn't dream of it four years ago, but now it's three."

Medvedev will be several years older than his next opponent, with Auger-Aliassime turning 21 last month and Alcaraz is still only 18.

Neither has ever reached a major semi-final either, while Medvedev will be playing in his fourth, having won two of them previously including at this year's Australian Open.

"I always said that experience helps me," Medvedev said. "You never know, because you're gonna play tough opponents, semis or final.

"Who knows? Maybe Novak. But first of course Felix or Carlos. Whoever wins gonna be on huge fire. You know they are much younger than even me.

"But for them it's going to be a first semis of a slam. Experience is not everything, because, for example, when I was in my first semis of a slam, I won it. Doesn't mean if you're there for the first time you're gonna lose it. But I like that I have this experience."

Daniil Medvedev took the first spot in the men's semi-finals at the US Open as he beat qualifier Botic van de Zandschulp in four sets on Tuesday.

Second seed Medvedev was two sets up with just over an hour played at Arthur Ashe Stadium, yet was ultimately made to work for a 6-3 6-0 4-6 7-5 triumph.

The Russian, a beaten finalist at Flushing Meadows in 2019 and a semi-finalist last year, broke Van de Zandschulp three times in the opening set, which he took at the fourth time of asking as his Dutch opponent offered up the first sign it would not be an easy day for the favourite.

Medvedev wrapped up a second set bagel with ease, though Van de Zandschulp – who beat in-form world number 11 Casper Ruud en route to the quarters – found some resolve in the third.

Unforced errors from the world number two handed Van de Zandschulp hope and the 25-year-old stuck 91 per cent of his first-serve points to take advantage.

Medvedev's wobble was short lived, however, with his composure regaining as he held his serve in what proved to be the final set.

A match point went begging as Medvedev missed the chance to break, but victory was assured on Van de Zandschulp's next serve, with a drop shot nestling into the net.

Next up for Medvedev is Felix Auger-Aliassime or Carlos Alcaraz, with the latter the youngest men's quarter-finalist at the US Open in the Open Era.

Data Slam: Medvedev's serve too strong

Medvedev won a whopping 83 per cent of his first serve points, converting 54 of 65, and finished with 13 aces. "I'm really happy with my serve in the fourth set, and to get through without a tie-break," he said. Indeed, in the final set, the 25-year-old's first serve percentage was up at 85. 

WINNERS/UNFORCED ERRORS

Van de Zandschulp – 36/35
Medvedev – 36/24

ACES/DOUBLE FAULTS

Van de Zandschulp – 4/4
Medvedev – 13/1

BREAK POINTS WON

Van de Zandschulp – 2/5
Medvedev – 7/12

Jenson Brooksby has confidence he can compete with anybody after threatening a fourth-round upset against Novak Djokovic at the US Open.

The unheralded American posed a real problem for Djokovic at Arthur Ashe Stadium and took out the opening set 6-1 in New York City.

It was not to be, though, as Djokovic – chasing a calendar Grand Slam – roared back to win 1-6 6-3 6-2 6-2.

Despite falling short, Brooksby is only looking at the positives from going toe-to-toe with the world number one in such a huge match.

"It's definitely all positive things to take away. I learned my game. I'm feeling really confident in my game. I believe I can compete with anybody," Brooksby said after his first run to the second week of a grand slam.

"I knew it would be important to start strong, to impose my mindset and my strategy, my game out there. It's definitely special. I mean, I always enjoy the matches and everything throughout the moment. Obviously you have to stay focused.

"Afterwards, you can always have time to reflect more. Just appreciate and enjoy for the whole journey.

"Atmospheres like that are what you want to be in front of since you were a little kid, watching on TV when you were young, and now you're living it. It is something I really appreciate and I'm grateful to be here now. I'm excited to keep [playing] in atmospheres like this for the future."

Brooksby required treatment a couple of times during the match and revealed he was contending with an issue to his left hip.

"Yeah, there was something. Something that kind of came up from later in the second match, then in the third one. Even with a day off, then kind of into today, like my left hip kind of was bothering me even early on and more into it," he added.

"Not like it's an excuse or anything, but it kind of went throughout the leg today a bit. I was struggling more to push off and move. But that's part of the sport. I did everything I could to feel the best I can going out there today and all the other days. There's no regrets on that.

"I definitely think if there wasn't that, I could have kept a better level up closer to the first set throughout the rest of the match."

Brooksby only reached the world's top 100 earlier this month and is now projected to be on the cusp of the top 40.

The 20-year-old relished his first experience of playing on Arthur Ashe.

"I did take time to look around a little bit, just appreciated being in an atmosphere like that with so many people cheering you on. Took a moment to still have it all in after," he said. 

"You're not going to win every match you play obviously, but you still have to enjoy it.

"I think [the belief] comes from definitely more training, but most importantly other match situations against other guys and just the whole process of it. 

"Leading up to it, I 100 per cent believed I could win against anybody. I thought I showed that with the level I could produce out there. Unfortunately, physically it got a little tougher."

Novak Djokovic said "I'll take your legs out, that's for sure" after digging deep to outlast American qualifier Jenson Brooksby in a physically demanding encounter at the US Open.

Djokovic – bidding to become only the third man to claim a calendar Grand Slam and first since Rod Laver in 1969 – rallied from a set down to prevail 1-6 6-3 6-2 6-2 en route to the quarter-finals in New York on Monday.

It was a brutal clash on Arthur Ashe Stadium, 20-time major champion and top seed Djokovic needed almost three hours to see off world number 99 Brooksby, who was making his debut at the iconic venue.

After being blitzed in a 29-minute opening set, Djokovic and Brooksby contested a gruelling 20-minute fifth game in the second set – the latter converting a sixth break-point chance.

Djokovic's physical superiority, however, was on display as the Serb star eventually powered past the spirited 20-year-old at Flushing Meadows.

During the last-16 matchup, former world number one Andy Roddick tweeted, in reference to Djokovic, "first he takes your legs… then he takes your soul".

Djokovic – who will face sixth seed Matteo Berrettini in a repeat of the Wimbledon final – said on court: "Thanks Andy, I take that as a compliment – only the first part.

"The second part, I don't take anybody's soul. Everyone has their soul, we're all beautiful souls so I appreciate everyone. But I'll take your legs out, that's for sure."

Djokovic hit 44 winners in the four-set triumph, to go with 41 unforced errors in a tricky clash under the Arthur Ashe lights.

With his hard-fought victory, Djokovic improved to 11-0 against Americans at the US Open. He is 29-3 at major events and 70-10 in ATP Tour-level matches.

The 34-year-old is on a 21-match winning streak against players from the United States since Sam Querrey snapped his 30-match slam streak at Wimbledon in 2016.

"Great quality match," Djokovic, who can break the record for most men's slam titles – currently level with injured pair Rafael Nadal and Roger Federer, told reporters. "He started off better. I've never played him. I didn't see him play too many times. Maybe few matches in the last few months. Haven't followed his career prior to that, so I didn't know much about him. Had to do some homework and some analysis.

"It's different stepping out on the court first time against someone that really has nothing to lose. He's a young, talented player that is very crafty. He's got the really all-around game. He was pumped. He had the crowd behind him, of course. He played a perfect first set. Everything he intended to do he executed it perfectly.

"On my end, I was just trying to find a rhythm, trying to read his game, trying to understand where I can find holes in his game and start to attack and shift the momentum to my side.

"That happened already at the beginning of the second set. I broke him early. He broke back. But I re-broke his serve right away. We had some very, very long rallies, long games. It took a toll physically I think on both of us at that point. But I managed to find the right serves. I served efficiently when I needed to, opening up the court.

"The third and fourth set were really, really good from my side. I felt I was more dominant. I decreased the unforced errors that were really high in the first part of the match. I just was kind of swinging through the ball better. Was a good finish. It wasn't a good start. But all in all, expected the battle, and I got that one. I'm pleased to overcome it."

World number one Novak Djokovic's quest for a calendar Grand Slam and record-breaking 21st major title remains on track after outlasting Jenson Brooksby 1-6 6-3 6-2 6-2 in a gruelling US Open showdown.

Unheralded American qualifier and world number 99 Brooksby had the crowd roaring following an incredible opening set against Djokovic in Monday's last-16 clash at Flushing Meadows.

However, Djokovic – bidding to become only the third man to sweep all four slams in the same year and first since Rod Laver in 1969 – responded to the almighty challenge, showcasing his superior physicality as the three-time US Open champion rallied into the quarter-finals in New York.

Brooksby was making his first appearance on Arthur Ashe Stadium, where the 20-year-old was looking to become the lowest-ranked player to beat a number one at the US Open since the start of the ATP rankings in 1973 and youngest American man since Andy Roddick (2003 Wimbledon) to reach a major quarter-final.

He was not overawed on the big stage, blitzing Djokovic in a remarkable first set. Playing with a bounce in his step and bringing the crowd to its feet, Brooksby only hit one unforced error in a dominant 29-minute display, which included two breaks of serve.

Djokovic was 38-34 at grand slams when losing the opening set and 12-10 at Flushing Meadows and after an error-filled opener, the Serb star let out an almighty roar after racing out to a 3-0 lead.

Just as Djokovic – level on 20 men's slams with Rafael Nadal and Roger Federer – looked comfortable, he endured a marathon 20-minute fifth game against Brooksby.

Brooksby broke at the sixth time of asking and the breath-taking tennis continued as Djokovic broke straight back to reclaim his advantage at 4-2 – the latter ending the game with an intense stare down in the direction of his opponent.

After a gruelling second set to level the match, the third followed a similar pattern, with Djokovic breaking in the opening game before moving 3-0 ahead.

Djokovic did not relinquish that lead, hitting 13 winners while claiming 11 of his 13 points at the net as he took the match to Brooksby.

Brooksby put up a huge fight but, he was unable to maintain his charge as the crowd went silent – Djokovic looking ahead to a last-eight showdown with sixth seed Matteo Berrettini in a rematch of the Wimbledon final.

 

Data slam: Djokovic flawless against locals in New York

With his hard-fought victory, which lasted almost three hours, Djokovic improved to 11-0 against Americans at the US Open. He is 29-3 at major events and 70-10 in ATP Tour-level matches. The 34-year-old is on a 21-match winning streak against players from the United States since Sam Querrey snapped his 30-match slam streak at Wimbledon in 2016.

WINNERS/UNFORCED ERRORS

Djokovic – 44/41
Brooksby – 27/28

ACES/DOUBLE FAULTS

Djokovic – 9/1
Brooksby – 4/1

BREAK POINTS WON

Djokovic – 6/12
Brooksby – 3/11

Carlos Alcaraz's fairytale run to the quarter-finals at the US Open is a dream come true for the Spanish teenager.

Alcaraz became the youngest men's US Open quarter-finalist in the Open Era when he ousted Peter Gojowczyk 5-7 6-1 5-7 6-2 6-0 on Sunday.

The 18-year-old, who became the youngest man to defeat a top-three player at Flushing Meadows when he beat Stefanos Tsitsipas last week, is also the most junior male player at the New York grand slam since Thomaz Koch in 1963.

Similarly, Sunday's triumph made him the youngest men's singles quarter-finalist at any grand slam since Michael Chang (18) made the last eight at the 1990 French Open.

Alcaraz will now face another rising star – Felix Auger-Aliassime – for a place in the semi-finals.

"I'm super excited to be in my first second week in the grand slam, so it's amazing for me. It's a dream come true," an ecstatic Alcaraz told reporters.

"It's really tough to play these kinds of matches, to play fifth sets. I hope to play [in] more second weeks, to play more quarter-finals of grand slams.

"I didn't expect to play in the quarter-finals here, so I think it's a really good performance from me in these matches."

Dubbed as the heir to Rafael Nadal's thrown, Alcaraz has certainly had the crowd on his side during his run.

"In the first sets I thought that I reached my limit, physically and mentally. I think the crowd was really, really important for me in this situation," Alcaraz added.

"I felt the energy of the crowd pushing me up. I think without the crowd, it couldn't be possible to be here."

Alcaraz faces a stern test in the form of world number 15 Auger-Aliassime, who has reached his second straight grand slam quarter-final.

However, the 21-year-old Canadian – who is aiming to secure a maiden appearance in the last four of a major – knows the quality Alcaraz possesses.

"He's a great player. At some point age is just a number. He already feels like a player who's established," Auger-Aliassime said of Alcaraz.

"He's playing some amazing tennis, so I think we’ll see a lot of him, a lot of us, a lot of Frances [Tiafoe] in the future."

Teenage Spanish sensation Carlos Alcaraz made history after outlasting Peter Gojowczyk for a US Open quarter-final berth.

Alcaraz became the youngest men's US Open quarter-finalist in the Open Era thanks to Sunday's 5-7 6-1 5-7 6-2 6-0 victory at Flushing Meadows.

After stunning third seed Stefanos Tsitsipas in New York, where he became the youngest man to defeat a top-three player at the US Open, the 18-year-old needed another five-setter to continue his fairytale run.

Alcaraz rallied past Gojowczyk, finishing with 35 winners – five more than the German qualifier – and 45 unforced errors, which were 39 fewer than his opponent.

Dubbed the new Rafael Nadal, Alcaraz became the youngest men's US Open quarter-finalist since Thomaz Koch (18) in the pre-Open Era in 1963.

He also became the youngest men's grand slam singles quarter-finalist since Michael Chang (18) at the 1990 French Open.

With the win, Alcaraz became the youngest men's player to earn back-to-back five-set wins at a grand slam since Chang (16) at the 1988 US Open as Felix Auger-Aliassime or Frances Tiafoe await.

Daniil Medvedev said "it's tough to beat me" as the confident and in-form world number two took another step towards his maiden grand slam crown at the US Open.

Medvedev advanced to the quarter-finals with a comfortable 6-3 6-4 6-3 victory over 24th seed Dan Evans in New York on Sunday.

US Open finalist in 2019 and Australian Open runner-up this year, Russian star Medvedev is yet to drop a set at Flushing Meadows this week.

As Dutch qualifier Botic Van De Zandschulp awaits, Medvedev discussed expectations at the US Open in pursuit of his first major title.

"I always say I take it match by match," Medvedev told reporters after hitting 42 winners in one hour, 43 minutes. "You can lose first round, you can lose final. If I play good, I know what I'm capable of. It's tough to beat me.

"In Wimbledon, I was honest, I lost against a great player, Hubert is playing great. I think he's on the rise. He's going to be even better ranked and maybe he's gonna go further in slams. He beat Roger [Federer] after me.

"But again, I was not talking about match itself where the loss was okay, I would say. I was talking about the result in general, and fourth round is not enough for number two in the world, especially I like grass more than clay, so maybe on clay I would not say this.

"Yeah, it's the same every tournament. If you're top seed, if you are not in the final, let's say Cincinnati, I lost against Rublev, brutal match, really strong play from him. But if you talk about the result itself, semi-final was not good enough.

"There is not much to add. I want to win every tournament I play in, without putting pressure on myself. Because again, I know how to win matches, and I know sometimes why I lose them, so that's just learning and being better for the next time."

Medvedev is 31-5 on hard courts in 2021 and 162-61 in his career, while he has won 11 of his 12 ATP titles on hard courts.

The 25-year-old owns a 17-4 record (80.95 per cent) at the US Open – his most wins and highest win percentage at a grand slam event.

"Feeling great before the second week," Medvedev said. "Feeling great with my tennis, my mental, my physical. Just looking forward."

Medvedev, who lost a thrilling US Open final to Rafael Nadal two years ago, added: "Now I just want to make it to the finals again to have another thing to remember and hopefully a better one."

Tokyo Olympic gold medalist Alexander Zverev refused to get carried away about his chances of winning his maiden major title despite easing into the US Open fourth round on Saturday.

The German fourth seed was leading 3-6 6-2 6-3 2-1 when Jack Sock withdrew with a groin issue which had been plaguing him throughout the match.

Zverev's walkover victory extended his winning run to 14 matches, dating back to his Tokyo 2020 gold medal triumph along with last month's Cincinnati Masters victory.

Reigning champion Dominic Thiem along with Rafael Nadal and Roger Federer all withdrew from the US Open prior to the tournament, opening the door for a first time winner.

"I’m on a 14-match winning streak now," Zverev said during his on-court interview. "I’m playing well. That’s all I want to say, I don’t want to say anything else.

"We all know that Novak is the big favourite, we all know that Daniil [Medvedev] is playing incredible tennis, we all know that there are a lot of other players out there that are playing incredible tennis.

"I think my fourth-round match against Jannik Sinner is going to be extremely entertaining because he’s a young guy that is very hungry and I feel like that’s going to be a high-level match."

Zverev also spoke about his drive to succeed at majors, having struggled earlier in his career.

The German was runner-up at last year's US Open and made the semi-finals at this year's French Open and last year's Australian Open.

Zverev's hopes for going deep at Flushing Meadows will be aided by the premature end to his match with Sock, having won in straight sets in the first two rounds over Sam Querrey and Albert Ramos Vinolas.

The Olympics gold medalist was full of praise for Sock, who has been plagued by injuries, after a dominant opening set.

"Jack I think played the best set of tennis I've ever seen him play," Zverev said. "I did one unforced error in the whole set and I lost it, 6-3, without having really any chances.

"If he would have kept it up I probably would not have won the match… Afterwards when he gets injured, it's a shame because otherwise it would have been an incredible match I think."

Novak Djokovic powered through to week two of the US Open by sinking Kei Nishikori, a player who must be sick of the sight of the Serbian.

For a 17th consecutive time in their rivalry, Djokovic beat the former world number four, who was runner-up at this tournament seven years ago.

A 6-7 (4-7) 6-3 6-3 6-2 victory in three hours and 33 minutes for Djokovic moves him into the fourth round, ever closer to the calendar Grand Slam he is chasing, having already won the Australian Open, French Open and Wimbledon.

Nishikori beat Djokovic in the US Open semi-finals in 2014, before losing to Marin Cilic in the final, but that was the last time he got the better of the man from Belgrade.

Djokovic won their 2018 semi-final at Flushing Meadows for the loss of just nine games and a 6-2 6-0 win for the world number one over Japan's Nishikori at the Tokyo Olympics in July suggested this latest clash in New York, the 20th between them, could be similarly one-sided.

Yet it became clear early in this clash that Djokovic faced a substantial test. He trailed 4-2 in the opener and could not save the set, despite forcing a tie-break. A stunning lob from Nishikori gave him two serves for the set, and he held his nerve to move in front.

Djokovic broke in the third game of the second set though and staved off a flurry of break-back points on his way to levelling the match.

When Nishikori served a double fault to allow Djokovic two break points in game four of the third set, it was inviting trouble. Djokovic won the second of those when his low slice and net rush prompted Nishikori to net a backhand.

Against the flow of the match, Nishikori broke back, helped by two consecutive double faults, but order was restored as Djokovic rolled through the next two games to move a set away from the next round.

Nishikori probably needed Djokovic's body to fail him, or for something as bizarre as last year's disqualification to occur, but nothing of the sort happened in set four, the world's best player in a class of his own.

Djokovic said: "I don't think I started off very well. I was too passive and too far back in the court and he was dictating the play. It took me a little bit of time to adjust to his game.

"By the beginning of the second set I felt like I was getting my groove back, getting my rhythm back. I was very pleased with my focus."

DATA SLAM

Nishikori will look back to the second set and ponder 'what if?', because he had seven break points and took none of them. Djokovic had three in that set and took two, and there lies greatness. Tennis comes down to taking chances as they arrive, being clinical, and after the chaos of the first set this was a ruthless Djokovic show.

WINNERS/UNFORCED ERRORS

Djokovic – 45/52
Nishikori – 38/56

ACES/DOUBLE FAULTS

Djokovic – 15/7
Nishikori – 6/3

BREAK POINTS WON

Djokovic – 7/16
Nishikori – 2/13

Carlos Alcaraz was lost for words after making history in the Spanish teenager's shock five-set upset of world number three Stefanos Tsitsipas at the US Open.

Alcaraz – rated by many as Spain's best young male player since 20-time grand slam champion Rafael Nadal first emerged – sent Tsitsipas packing 6-3 4-6 7-6 (7-2) 0-6 7-6 (7-5) in the third round on Friday.

The 18-year-old Alcaraz became the youngest player to reach the last 16 of the US Open since Americans Michael Chang and Pete Sampras in 1989.

Alcaraz also became the youngest man to beat a top-three opponent at the tournament since the ATP introduced its world ranking system in 1973.

After more than four hours on Arthur Ashe Stadium, Alcaraz told reporters: "I have not words to explain how I feeling right now.

"I just don't know what happened out there in the court. I can't believe that I beat Stefanos Tsitsipas in an epic match.

"For me it's a dream come true."

Amid comparisons with countryman Nadal, Alcaraz added: "Honestly I don't copy any style of a players. I just play my game.

"But if I have to say one player that is similar my game, I think it's [Roger] Federer. I think similar as mine game, trying to be aggressive all the time. I think it's a good similar for me."

After his US Open campaign came to a surprise end, third seed Tsitsipas tipped Alcaraz for future success.

"A hundred percent," Tsitsipas replied when asked if he had a sense of Alcaraz's potential. "I said he can be a contender for Grand Slam titles. He has the game to be there."

"I've never seen someone hit the ball so hard," French Open runner-up Tsitsipas added. "Took time to adjust. Took time to kind of develop my game around his game style.

"It's one of these matches and one of these feelings where, you know, you pick up at some point of the match, you feel like you're in control, and it doesn't really go your way at the end.

"It's kind of bitter, I would say, especially after such an incredible first set by my side, dominating, being just so aggressive, not dwelling on the past. It was a great first set.

"I don't know. I felt like he played the fifth one completely -- the way he played the first set basically, careless, going for every single shot. I have never seen someone play such a good fifth set, honestly."

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