Just months ago, there were doubts over Rafael Nadal's future. Now, he is a win away from a record-breaking major triumph.

Nadal overcame Matteo Berrettini 6-3 6-2 3-6 6-3 in the Australian Open semi-finals on Friday, reaching his 29th grand slam decider.

The Spaniard is a win away from a 21st grand slam title, which would break his tie with Roger Federer and Novak Djokovic for the most won by a man.

Such events looked incredibly unlikely just months ago.

Nadal ended his 2021 season in August after playing just seven events, a persistent foot injury not only derailing his season but threatening his career.

"Everybody around me, me included, of course, but everybody around me had a lot of doubts. Not about the Australian Open, no, but about coming back on the Tour because the foot was bothering me a lot of days," Nadal said after his third-round win over Karen Khachanov.

"Of course, still today there are doubts because the foot, as I said the other day, is an injury we cannot fix … so we need to find a way that the pain is under control to play, to keep playing. That's the goal.

"Honestly, I was not able to practice very often. But when I was practising, the feeling on the ball was quite good. There have been a lot of months without competing. The movements, all this stuff, you need to recover day by day. There is no way to recover those things without competing. That's what I need, keep playing. Already three and three, so six matches on my back, and positive ones. Every day a little bit better, so I'm happy for that."

After a four-month absence, Nadal made his return at an exhibition in Abu Dhabi in December. Days later, he tested positive for COVID-19.

Still, he made the trip to Australia, winning his 89th ATP Tour title at the Melbourne Summer Set, his first hard-court crown since February 2020.

That success was incredible, given Nadal played just 14 tournaments in total in 2020 and 2021.

"Of course, when you are getting a little bit older, all the comebacks are tougher," Nadal said after beating Marcos Giron in the opening round. "This has been especially, well, difficult because it's not only a comeback from an injury, it's a comeback trying to be back on the Tour after almost two years playing not many events with the virus.

"If you remember in 2020 I only played here and Acapulco, then I just played in Rome, Roland Garros, Paris and London. Six events.

"In 2021 I played just here and then [it] was clay, Monte Carlo, Barcelona, Madrid, Rome, Roland Garros. Washington, yeah. Another six events – 12 events in two years are not many. If we add that I was not able to practice very often, too, it's a really tough one, no?

"But here I am. I am super happy about all the work that we have done to try to be back. We are here enjoying the tennis, and that's it. We're going to keep trying hard."

Nadal is back. Not just back playing, but back fighting his way into grand slam finals, and back in position to make more history.

Rafael Nadal insisted his run to the Australian Open final was "completely unexpected" after moving to within a win of a record-breaking grand slam title.

Nadal, 35, overcame Matteo Berrettini 6-3 6-2 3-6 6-3 in their semi-final under the Rod Laver Arena roof on Friday.

After doubts over his career due to a persistent foot injury, Nadal is into a 29th grand slam final and a win away from a 21st major crown, which would break a tie with Roger Federer and Novak Djokovic for the most won by a man.

The Spaniard said he had no expectations to reach the decider in Melbourne, where Daniil Medvedev or Stefanos Tsitsipas await.

"For me it's something completely unexpected, so I am super happy. Of course everybody knows me, and I'm always going to try my best. Of course my goal now is to win," Nadal told a news conference.

"As I said, for me, it's a present, just be here and play tennis. I am taking now things a little bit in a different way, of course always with competitive spirit that I have, because I can't go against that. It's my personal DNA.

"But in some way, I don't know, just be what I am and be able to have the chance to compete at this level, it's a positive energy for me to keep going, because at the end of the day, and being very honest, for me it's much more important to have the chance to play tennis than win the 21. Because that makes me more happy in terms of general life to be able to do the thing that I like to do more than achieving another grand slam.

"At the end of the day, life, it's about happiness and what makes me happy. It's about just having the chance to do what I like to do."

Nadal ended his 2021 season in August and, after a four-month absence, returned for an exhibition event in Abu Dhabi last month.

He claimed his 89th ATP Tour title in Melbourne earlier this month before progressing to the Australian Open final.

"I feel alive in terms of my tennis life, you know, in terms of my tennis career," Nadal said.

"In my personal life, I honestly have a good life. I feel lucky that my family is healthy, and during these challenging times that's everything. More important than tennis, for sure. 100 per cent.

"But, yeah, I explained before, for a long time I wasn't able to practice. Sometimes I went on court and I was able to practice 20 minutes, sometimes 45, sometimes zero, sometimes two hours, but have been very, very rough in terms of imagining myself playing at the best-of-five at this moment.

"So, yeah, I don't know. Super happy. It's true that I worked hard for a long time every single day in terms of when I was not able to play tennis I was working hard in the gym.

"I think I'm never going to say I deserve, because a lot of people deserve. But I worked the proper way, and I hold the positive spirit and attitude to have the chance to give myself a chance to be back."

Rafael Nadal is a win away from a record-breaking 21st grand slam title after getting past Matteo Berrettini to reach the Australian Open final on Friday.

Nadal overcame the Italian seventh seed 6-3 6-2 3-6 6-3 after two hours, 55 minutes under the Rod Laver Arena roof in their semi-final on a stormy day in Melbourne.

The Spanish star will face either Daniil Medvedev or Stefanos Tsitsipas in the decider, in which he can break the record for most grand slam titles won by a man.

Nadal had won his only previous meeting with Berrettini and he targeted the Italian's backhand from the outset, and it worked wonders.

Berrettini, however, fought hard and forced a fourth set against Nadal, who reached his sixth Australian Open final and 29th major decider, a tally only bettered by Roger Federer and Novak Djokovic (31 each).

Nadal targeted the Berrettini backhand from the start, and it helped yield a break in the second game.

Back-to-back unforced errors from that wing, the second pulled wide, from Berrettini handed Nadal a 2-0 lead.

That break proved to be enough for Nadal in a 43-minute opening set, closed out despite Berrettini briefly threatening in the ninth game.

Perhaps still recovering from the disappointment of the first set, Berrettini was broken to start the second, three unforced errors – two from a forehand side that had appeared capable of doing damage to Nadal – giving the Spaniard a break point he converted with a forehand winner.

Berrettini had no answers to Nadal's consistency and relentlessness and even his forehand was beginning to let him down as he fell 3-0 behind in the second set, a deficit he was never going to recover from.

Nadal was unable to pull away early in the third set and instead it was Berrettini, suddenly sparked to life and looking far more energetic, who struck to break for 5-3.

A running forehand pass down the line helped set up the break chance and Berrettini delivered a forehand winner before serving it out to love.

Berrettini went on a run of winning 23 consecutive points on serve, but when that was ended in the eighth game of the fourth set, he found trouble.

He saved a break point after a 23-shot rally but then netted consecutive forehands to fall 5-3 behind, Nadal closing out his victory to reach the final.

DATA SLAM: Nadal showing no signs of slowing down

Even at 35, Nadal has reached yet another grand slam final.

He became the fifth man aged 35 or older to reach a grand slam final in the Open Era, after Federer, Ken Rosewall, Mal Anderson and Andre Agassi.

The win over Berrettini also saw Nadal beat a top-10 player at the Australian Open for the first time since 2017.

WINNERS/UNFORCED ERRORS
Nadal – 28/19
Berrettini – 38/39

ACES/DOUBLE FAULTS
Nadal – 5/2
Berrettini – 14/2

BREAK POINTS WON
Nadal – 4/8
Berrettini – 1/2

Matteo Berrettini became the first Italian man to reach the Australian Open semi-finals after outlasting Gael Monfils on Tuesday.

Berrettini had appeared to be on course for a dominant victory, and although Monfils fought back to make it tough, the 25-year-old got the job done 6-4 6-4 3-6 3-6 6-2 in a gruelling encounter.

Monfils had an uphill struggle amid a sloppy start, with Berrettini breaking to love in the fifth game as the Frenchman committed two unforced errors and a double fault.

That proved to be the only opportunity Berrettini needed, and he subsequently had few issues seeing out the set from there, though Monfils initially appeared sharper early in the second.

An astonishing fourth game then left Monfils looking dejected as Berrettini somehow survived 10 deuces to hold serve after almost 20 minutes – the 25 points played here were almost half the first-set total (55).

Berrettini sensed the mood and went for the kill, losing just two points on serve before going on to close out the set to love.

A reaction did come, however. Monfils finally got his first break of serve as Berrettini's first double fault gifted him a lifeline, the 35-year-old then easing through the rest of the third set.

He kept that up in the fourth as well, with two huge forehand winners helping Monfils go a break up to take charge before ultimately levelling the match, but Berrettini had too much in the decider as he broke in the first game.

Berrettini raced into a 4-0 lead and, although Monfils did pull a couple of games back, the Italian was out of sight and clinched a deserved victory that saw him grab a slice of history.

DATA SLAM: Berrettini holds his nerve at the crucial moment

Having lost the previous two sets heading into the decider, it could have been very tempting for Berrettini to completely change up his game, but he remained very focused on accuracy and essentially letting Monfils shoot himself in the foot.

Berrettini made no double faults and just four unforced errors in the final set, compared to Monfils' combined total of 11, 10 of which came during rallies. The Italian won 80 per cent of his points on serve in the fifth and that mentality was crucial in outlasting his opponent.

WINNERS/UNFORCED ERRORS

Berrettini – 51/50

Monfils – 48/51

ACES/DOUBLE FAULTS

Berrettini – 12/2

Monfils – 15/7

BREAK POINTS WON

Berrettini – 4/11

Monfils – 3/14

Matteo Berrettini made Italian tennis history on Sunday as he blasted his way past Pablo Carreno Busta and into the Australian Open quarter-finals.

The seventh seed won 7-5 7-6 (7-4) 6-4 in a gruelling contest to set up a last-eight clash with Gael Monfils, who earlier beat Miomir Kecmanovic.

Berrettini is the first men's player from his country to reach the quarter-final stage of all four grand slams in the singles draw, and only the 10th active player to achieve the feat.

The 25-year-old only reached this stage of a major for the first time in 2019 and has since gone as far as the final in Wimbledon last year, where he lost to Novak Djokovic.

Having withdrawn from his round-of-16 match with Stefanos Tsitsipas in Melbourne in 2021 due to an abdominal injury, Berrettini was delighted to have progressed.

"It was really tough last year. I really wanted to play, but I couldn't with the tear in the ab," he said.

"But I believe there is a reason for everything that happens and I've been wishing to come back as soon as possible and the way I won today shows how much I care about this tournament."

Berrettini had luck on his side in the first set as two netcords on Carreno Busta's serve allowed him to break for a 6-5 lead.

Once ahead in the match, his serve and baseline power became too much for the Spaniard: Berrettini rained down 28 aces, winning 87 per cent of points behind his first serve, and hit 57 winners.

"I was really precise with my serving and he wasn't reading my serve, which is why I hit a lot of aces," he said.

Next up is a meeting with Monfils, who has now reached 10 slam quarter-finals in his career and a first in Australia in six years.

These two met at the same stage of the 2019 US Open, Berrettini prevailing in five sets after losing the first two. The winner could face Rafael Nadal in the semi-finals.

"It's been a long journey for me and I'm quite happy, but it's not finished," said Monfils. "I will try to play this quarter-final not like the last time. I will try to be better.

"It's an achievement but we're not quite finished yet."

Matteo Berrettini spoke glowingly on the potential of Carlos Alcaraz after battling past the Spaniard at the Australian Open on Friday.

The 2021 Wimbledon finalist managed to make it to the fourth round, despite squandering a two-set lead, as he edged to a 6-2 7-6 (7-3) 4-6 2-6 7-6 (10-5) victory.

Berrettini went down to the 18-year-old, who is the youngest man in the draw of the first grand slam of 2022, in a third-set tie-break loss in Vienna last year.

After securing victory on this occasion in Melbourne, the Italian heaped praise on Alcaraz following their marathon slog that lasted four hours and 10 minutes.

"He is unbelievable," seventh seed Berrettini said of his teenage opponent as he reflected that he did not have a single ATP point to his name at Alcaraz's age.

"He is impressive and will only improve playing matches like this, he has shown everyone his potential. Luckily today I won."

There was a slight concern for Berrettini during the deciding set after the 25-year-old rolled his ankle.

But he was pleased to have fought through his injury problems as he discussed how he almost relinquished his two-set advantage at Rod Laver Arena.

"I felt confident, and that momentum was on my side in the third set but then I got broken," he added during his on-court interview.

"My energy wasn't right in the fourth set and in the fifth I just started to think about fighting for every point. In every match something happens [like the ankle injury] but I fought through it."

Awaiting Berrettini in the next round will be Alcaraz's fellow Spaniard Pablo Carreno Busta, who defeated Sebastian Korda in four sets to win his third-round tie.

Daniil Medvedev suffered a shock loss in his first match of the year as the US Open champion was beaten by Ugo Humbert at the ATP Cup.

World number two Medvedev led by a set and 3-0 but stumbled from there and went down 6-7 (5-7) 7-5 7-6 (7-2) at the team event in Sydney.

He put that defeat behind him and paired up with Roman Safiullin in doubles to clinch a 2-1 victory for Russia over France in the round-robin Group B tie.

Medvedev and Safiullin were 6-4 6-4 winners over Fabrice Martin and Edouard Roger-Vasselin in the tie decider, with world number 167 Safiullin having earlier scored an impressive 2-6 7-5 6-3 singles victory over Arthur Rinderknech.

Humbert's remarkable comeback victory over Medvedev was the standout result of the contest, however, with the 23-year-old French left-hander saying afterwards: "It was a very tough match. I am very happy."

Metz-born Humbert added, quoted on the ATP website: "I had some opportunities in the first set and I just tried to stay relaxed and focused on what I had to do. It was a great match."

Australia had an eye-catching win in the same group, landing a 2-1 success over Italy, helped by Alex de Minaur beating Wimbledon runner-up Matteo Berrettini.

De Minaur scored a 6-3 7-6 (7-4) win to level the tie after Jannik Sinner swept past Max Purcell 6-1 6-3, with Berrettini and Simone Bolelli then beaten 6-3 7-5 in a late-night doubles tussle by John Peers and Luke Saville.

In Group C, Great Britain scored a 2-1 win over Germany, with Dan Evans and Jamie Murray teaming up in doubles to beat Alexander Zverev and Kevin Krawietz 6-3 6-4 to take the tie.

Zverev had earlier been too good for Cameron Norrie, posting a 7-6 (7-2) 6-1 win, after Evans sped to a 6-1 6-2 victory over Jan-Lennard Struff.

In their next tie, Germany will do battle with a United States side who were impressive 3-0 winners against Canada on Sunday. John Isner and Taylor Fritz scored singles victories over Brayden Schnur and Felix Auger-Aliassime before pairing up to beat Auger-Aliassime and Denis Shapovalov in doubles.

There was agony for Matteo Berrettini as he was forced to retire in his first match of the ATP Finals against Alexander Zverev on home soil.

Italian Berrettini appeared to suffer an abdominal injury when trailing 1-0 in the second set after Zverev won the first 7-6 (9-7) in their opening Red Group match in Turin on Sunday.

Sixth seed Berrettini dropped his racket and put his head in his hands as he grimaced after crashing a forehand into the net and underwent lengthy treatment to his left side.

The world number seven attempted to continue, but was clearly in pain as he served and duly brought the contest to an end at the Pala Alpitour.

Berrettini cut an emotional figure and was embraced by Zverev before being given a great ovation as he trudged off the court, with his opponent standing to applaud.

Zverev had saved two set points in the opening set and came from 5-3 down in the breaker to edge in front before the match came to a premature end.

WINNERS/UNFORCED ERRORS 

Zverev – 21/9
Berrettini– 16/23

ACES/DOUBLE FAULTS 

Zverev – 10/1
Berrettini – 5/0

BREAK POINTS WON 

Zverev – 0/5
Berrettini – 0/2

Top seed Andrey Rublev crashed out of the St Petersburg Open after a straight-sets defeat by Dutch qualifier Botic van de Zandschulp in the quarter-finals.

A recent US Open quarter-finalist, world number 69 Van de Zandschlup claimed the first top-10 win of his career on Friday.

The 26-year-old also advanced to the semi-finals of an ATP event for the first time.

There, he will face 2011 champion Marin Cilic, who was a 6-4 3-6 6-3 winner over third seed Roberto Bautista Agut.

Denis Shapovalov was another big-name casualty in Russia, the second seed going down 4-6 3-6 against world number 53 Jan-Lennard Struff.

Although, there were better fortunes for fifth seed Taylor Fritz. The Indian Wells semi-finalist is yet to drop a set this week after prevailing 6-4 6-2 against John Millman.

Elsewhere, Matteo Berrettini was the victim of another upset at the Erste Bank Open in Vienna.

The Wimbledon champion went down 1-6 7-6 (7-2) 6-7 (5-7) following a two-hour 40-minute battle with Carlos Alcaraz.

Reaching his first ATP 500 semi-final, the Spanish teenager claimed another big scalp having defeated Stefanos Tsitsipas at Flushing Meadows last month.

However, second seed Alexander Zverev remained on course for a fifth title of the season, as he claimed his 300th tour-level win.

The Australian Open finalist beat Felix Auger-Aliassime 6-4 3-6 6-3, avenging his fourth-round defeat by the Canadian at Wimbledon in July.

Alexander Zverev overcame former world number one Andy Murray to reach the Indian Wells Masters last 16 as Stefanos Tsitsipas also progressed, but Matteo Berrettini lost.

Olympic Gamed gold medallist and third seed Zverev fell behind a break in both sets but battled past Murray in straight sets at the ATP Masters 1000 tournament on Tuesday.

Tsitsipas – the second seed – rallied from a set down to vanquish Fabio Fognini in the desert, while fifth seed Berrettini was a third-round casualty.

ZVEREV CLAIMS COVETED SCALP OF MURRAY

Having already defeated Novak Djokovic, Rafael Nadal and Roger Federer in his career, all that was missing for Zverev was a win over Murray to complete the 'Big Four' sweep.

Zverev added Murray to his list of scalps with a 6-4 7-6 (7-4) victory to reach the Indian Wells fourth round for the first time since 2016.

The German star has now won 19 of his last 20 matches since Wimbledon.

"He's the only one of the Big Four that I hadn't beaten yet, so I'm happy that I've done it today," said Zverev, who will clash with 14th seed Gael Monfils in the next round. "Obviously it was a fantastic match.

"I thought Andy played extremely well, maybe as well as he's played since the surgery. I hope he continues playing the same way, because tennis did miss him for a long time and I think it's good to have him back."

TSITSIPAS FIGHTS BACK

It was far from easy for Greek star Tsitsipas, who prevailed 2-6 6-3 6-4 against 25th seed Fabio Fognini.

Tsitsipas added to his ATP Tour-leading haul of match wins this season, which now stands at 53 after Fognini had been looking to score his first victory over the French Open runner-up.

Alex de Minaur – the 22nd seed – awaits after he took down 13th seed Cristian Garin 6-4 6-2 for his first trip to the Indian Wells last 16.

BERRETTINI BUNDLED OUT

Wimbledon finalist Berrettini was no match for Taylor Fritz, who surprisingly topped the Italian 6-4 6-3.

Berrettini entered the contest as the only player on the ATP Tour this season to register double-digit wins on three surfaces – 15-4 (hard), 13-4 (clay) and 11-1 (grass).

"We're coming to the end of the year, I could really use a big result," said Fritz after claiming his first top-10 win of the year. "This is just what I needed, playing one of my favourite tournaments close to home."

Andy Murray put his body to the test as the former world number one overcame teenage sensation Carlos Alcaraz at the Indian Wells Masters, where stars Stefanos Tsitsipas and Alexander Zverev advanced to the third round.

Murray needed more than three hours to see off 18-year-old talent Alcaraz, who announced himself on the big stage with a quarter-final run at the US Open.

An Indian Wells runner-up in 2009, Murray was joined in the next round by second seed Tsitsipas and third seed Zverev on Sunday.

MURRAY WINS BATTLE OF GENERATIONS

Injuries have struck down Murray in recent years, but the three-time grand slam champion showed there is still plenty of fight left in the tank after rallying past debutant Alcaraz 5-7 6-3 6-2.

Facing a player 16 years his junior, Murray – making his 13th Indian Wells appearance – reached the third round of an ATP Masters 1000 event for the first time since 2016.

The 34-year-old Murray, who hit an underarm ace, improved his record to 27-12 in the desert following three hours, four minutes on court.

"He's obviously got so much potential, so much firepower and these conditions it's not easy to finish points off quickly, but he's able to because he has so much pace from the back of the court so I had to fight extremely hard, coming back from a set down," said Murray, who will next meet Zverev. 

"I felt like in the second set he played maybe better. First set I felt like I had more of the opportunities but didn't get it so yeah, happy with the way I fought. He's a top-drawer young player."

ZVEREV QUALIFIES FOR TURIN AS TSITSIPAS CRUISES

US Open finalist and Olympic gold medallist Zverev outlasted talented American Jenson Brooksby 6-4 3-6 6-1 to set up a showdown with Murray.

World number four Zverev ended the contest with 12 aces and 28 winners, having qualified for next month's ATP Finals in Turin thanks to the German's four tour-level titles in 2021.

"It wasn't an easy match, but I'm happy to be through, I'm happy to be in the third round and playing Andy now," said Zverev, who has won 18 of his last 19 matches since Wimbledon. "I think he's the only one of the 'Big Four' [including Novak Djokovic, Rafael Nadal and Roger Federer] I haven't beaten yet, so I hope I can change that. I think it's incredible how well he's moving and incredible how well he's playing. I think he's very motivated so I hope I can show my best tennis."

It was far more routine for Greek star Tsitsipas, who eased past Pedro Martinez 6-2 6-4 in his tournament opener.

Tsitsipas needed just 93 minutes to take down his opponent for his Tour-leading 52nd win of the season as the French Open runner-up awaits 25th seed Fabio Fognini for a place in the fourth round.

BERRETTINI ROLLS ON AS AUGER-ALIASSIME SAYS GOODBYE

Italian fifth seed Matteo Berrettini won through to the third round via a 6-4 7-5 success against qualifier Alejandro Tabilo – his first Indian Wells win following two previous appearances.

Felix Auger-Aliassime was the biggest name to depart the event on Sunday, with the seventh seed and Flushing Meadows semi-finalist going down 6-4 6-2 to Albert Ramos-Vinolas.

Jannik Sinner, Pablo Carreno Busta, Cristian Garin and Gael Monfils were among the seeds to progress.

Team Europe are on track for their fourth consecutive Laver Cup triumph after earning an early 3-1 lead against Team World.

Opening-day honours went to Bjorn Borg's Team Europe at TD Garden in Boston, where the defending champions moved into the box seat thanks to wins for Andrey Rublev, Matteo Berrettini and Casper Ruud in the singles on Friday.

John Isner and Denis Shapovalov managed to get Team World on the board in the evening's final doubles match against Alexander Zverev and Berrettini 4-6 7-6 (7-2) 10-1.

Roger Federer and Rod Laver were in the crowd as Team Europe – headlined by newly crowned US Open champion Daniil Medvedev and consisting of six of the world's top 10 – made a strong start courtesy of Norwegian Ruud, who overcame Reilly Opelka 6-3 7-6 (7-4), improving his career record to 3-0 against the towering American, and beating him in straight sets for the first time.

Italian star Berrettini then overcame Team World's Felix Auger-Aliassime 6-7 (3-7) 7-5 10-8 in the competition's longest match at two hours, 52 minutes.

Berrettini escaped with the second set after facing two break points in the penultimate game before prevailing against the Canadian in a thrilling match tie-break.

"One of the best matches bar none that I've ever seen played, absolutely just enthralling," said captain John McEnroe, whose Team World are eyeing their first Laver Cup trophy.

Rublev rallied past Argentina's Diego Schwartzman, who won the opening set and led 6-2 and 8-5 in the match tie-break before losing 4-6 6-3 11-9.

"Today we are a bit more lucky; Matteo won a tough match against Felix in a super tiebreak, now you saw my match," said Russian star Rublev.

"It was so close; Diego was leading all the super tiebreak, but in the end I find a way to win.

"This happens. This is tennis, this is sport. It’s emotions. Someone has to win, someone has to lose."

On day two, Stefanos Tsitsipas and Zverev headline the day session against Team World's Nick Kyrgios and Isner.

In the evening, Medvedev will meet Shapovalov before Rublev and Tsitsipas team up for a doubles battle with Kyrgios and Isner.

Novak Djokovic knows he faces a tough challenge in his US Open semi-final with Alexander Zverev after coming from a set down to beat Matteo Berrettini.

The Serbian triumphed 5-7 6-2 6-2 6-3 to thwart Berrettini's revenge mission, having defeated the Italian in this year's Wimbledon final.

The world number one now faces the man who denied him a shot at the Golden Slam, with Zverev dumping Djokovic out of the semi-finals at Tokyo 2020.

And the 20-time grand slam winner was full of praise for his next opponent.

"He's in tremendous form, he's been winning a lot," said Djokovic, who still has the Calendar Grand Slam in his sights. "He has comfortably moved to the semi-finals here.

"I know his game well, we played in Tokyo. He's one of the best players in the world, but the bigger the challenge the more glory in overcoming it."

Reflecting on his victory over Berrettini, Djokovic felt he found his best form after dropping the opening set.

"This was a great match, with a lot of energy on and off the court," he said. 

"Matteo is a terrific player and every time we face each other it's a close battle.

"When I lost the first set, I managed to forget about it and move on. I was locked in at the start of the second and it was the best three sets I've played so far."

Novak Djokovic moved within two wins of an historic calendar Grand Slam at the US Open after completing a merciless comeback against Matteo Berrettini 5-7 6-2 6-2 6-3 en route to the semi-finals.

Berrettini was seeking revenge for his Wimbledon final loss to Djokovic and the Italian sixth seed gave himself a good chance after winning the opening set at Flushing Meadows on Wednesday.

But Berrettini was helplessly outclassed in a devastating display from world number one Djokovic, who is bidding to become just the third man to sweep all four majors in a year and first since 1969.

The 20-time major champion, who can also break the record for most men's slam titles – currently tied with Rafael Nadal and Roger Federer, will face Alexander Zverev in the New York semis.

For the third consecutive match, Djokovic done it the hard way, rallying after dropping the opening set, just like he did against Jenson Brooksby and Kei Nishikori.

In a brutal display of big hitting, Berrettini had the crowd roaring – firing down seven aces and saving two break points in a marathon first set lasting one hour, 17 minutes.

Berrettini held serve in a physically demanding sixth game after 12 minutes and seven deuces.

Djokovic – not without his chances – did not look like his usual self, spraying a forehand wide as Berrettini seized control following four set points.

Berrettini was looking to claim his first win over Djokovic after three consecutive defeats and earn his first top-10 victory at a grand slam (0-5 heading into the contest), but the Serb star turned the match on its head into the second set.

Djokovic, though, flipped the switch as he broke for the first time to move 3-1 ahead before consolidating for a 4-1 lead, silencing the pro-Berrettini crowd in New York, where the latter was unable to stop the rot.

Berrettini looked deflated and tired in the third set – Djokovic racing out to a commanding 3-0 advantage.

Djokovic missed the chance to move 5-2 ahead but it only delayed the inevitable as he fended off a break point the very next game to eventually earn a two-sets-to-one lead.

And the 34-year-old could not be stopped as he celebrated his 80th US Open match win in emphatic fashion.

Data slam: Can Djokovic be stopped?

Djokovic extended his winning streak at grand slams to 26 matches, while he also remains unbeaten in US Open quarter-finals (12-0). The record-chasing star also owns a 9-0 major record in 2021 after dropping the first set.

WINNERS/UNFORCED ERRORS

Djokovic – 44/28
Berrettini – 42/43

ACES/DOUBLE FAULTS

Djokovic – 12/4
Berrettini – 17/2

BREAK POINTS WON

Djokovic – 5/16
Berrettini – 1/5

Nick Kyrgios, John Isner and Reilly Opelka have been named by Team World captain John McEnroe as his final three picks for the Laver Cup.

The trio join Denis Shapovalov, Felix Auger-Aliassime and Diego Schwartzman for the team event which runs from September 24-26 at TD Garden in Boston.

Laver Cup newcomer Opelka rose to a career-high world number 23 ranking en route to his first ATP Masters 1000 final in Toronto and defeated world number three Stefanos Tsitsipas, who will play for Bjorn Borg's Team Europe.

Isner, who has featured for Team World since the inaugural event in 2017, reached the semi-finals in Toronto and claimed his 16th ATP Tour title in Atlanta at the start of August.

He described the Laver Cup as "a highlight of my year", adding: "To be on a team with guys we're normally competing against is so different and so much fun. We come together so well as a group, the chemistry is awesome and it's such a great environment to be part of."

Australian firebrand Kyrgios is a striking inclusion in Team World's roster, while Team Europe will be without their big three: Roger Federer, Rafael Nadal and Novak Djokovic.

Federer and Dominic Thiem were expected to take part in this year's event, though both were forced to withdraw with injuries.

However, Borg's men still boast six of the world's top 11. World number two Daniil Medvedev leads the line-up, with Tsitsipas and Tokyo Olympics gold medallist Alexander Zverev for company.

Casper Ruud, who collected a 14th win in his last 15 completed matches on tour when he beat Opelka on Wednesday, will feature, while Andrey Rublev and Wimbledon finalist Matteo Berrettini complete the six-man team.

Team Europe have landed the title in each of the three editions of the tournament so far, with Prague, Chicago and Geneva having served as hosts.