Michael Venus hit out at Nick Kyrgios after bowing out of the men's doubles at the Australian Open on Tuesday.

The Kiwi and Tim Putz were beaten 7-5 3-6 6-3 by Kyrgios and Thanasi Kokkinakis in the quarter-finals at a loud Kia Arena.

But Venus was unhappy with Kyrgios, slamming the Australian for his antics.

"There'll always be his supporters and he'll always spin it in a way that helps him, but at the end of the day he's just an absolute k***," he told 1News.

"I think it just speaks for him. His maturity level, it's probably being generous to a 10-year-old to say it's at about that level."

Kyrgios and Kokkinakis have embarked on a memorable run to the semi-finals of the men's doubles, with crowds flocking to their matches.

Despite his criticism of Kyrgios, Venus also praised the two-time grand slam singles quarter-finalist's talent.

"He's an unbelievable tennis player, what he does on the tennis court, what he can do out there, his tennis IQ on the court, it is amazing and he's definitely on that side of things one of the best players in the world," he said.

"But from the maturity side of things you see why he's never fulfilled his potential and probably never will."

Rafael Nadal almost pulled out of the Australian Open just days before heading to Melbourne, according to his uncle.

The 35-year-old battled past Denis Shapovalov on Tuesday to reach the semi-finals of the tournament for just the third time since 2016.

Nadal, who is chasing a record 21st grand slam title to break the three-way tie with Roger Federer and Novak Djokovic, has only won the first major of the year once in his career – back in 2009 – and lost at the quarter-final stage in 2020 and 2021.

Even with nine-time champion Djokovic not competing after being deported by border authorities over a visa dispute, few considered Nadal to be the favourite for the title this year given he went from August to December in 2021 without playing a match, having undergone surgery on a foot injury.

Nadal has looked in strong form, though, even recovering from apparent stomach trouble and difficulty in the heat to beat Shapovalov 6-3 6-4 4-6 3-6 6-3 after more than four hours of action on Rod Laver Arena.

Toni Nadal, his coach for most of his professional career, said his nephew nearly decided against competing at all in Australia as he did not feel ready.

Asked if he were surprised by Nadal's form, he told Cadena SER: "Yes, I'm surprised, because I remember when three days before the start, Rafa called my youngest son to hit a few balls after being quarantined due to coronavirus.

"At nine o'clock, we went to train and during training, he said, 'I don't know if I'm going to go or not because at the moment I'm not in condition for an Australian Open'. They only had three days to get a flight.

"The following day, he perked up and said 'Okay, come on, I'm going'. I think it was more the excitement of competing and returning to competition than believing in himself."

Speaking about the quarter-final, Toni Nadal said his brother in Australia told the family about the problems with the heat on court.

"He looked good. In the first two sets, he played at quite a good level against a tough opponent," he said.

"Everything changed as a result of heatstroke. We were watching the game with the family and at one point, after the second set, I said, 'well, I think this is done', and my brother in Australia said no, he's literally exhausted, and he'd told them he had had heatstroke."

Shapovalov lost his temper with umpire Carlos Bernardes during the match for refusing to give Nadal a time violation during a change of ends, proclaiming "You guys are all corrupt" before claiming post-match that players such as Nadal receive preferential treatment on court.

"I think he is totally wrong," said Toni. "When you have to change, you need time and the umpire normally looks at the players and sees the time and starts the clock later. He pressed too soon, realised it and that's why he gave Rafa more time.

"Young people sometimes act without thinking. How could an umpire be corrupt?"

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

Rafael Nadal's happiness does not depend on finishing his career with more grand slam titles than rivals Novak Djokovic and Roger Federer.

Nadal edged out Denis Shapovalov in a five-set epic on Tuesday to reach the Australian Open semi-finals.

The Spaniard has only won the season's opening grand slam once, back in 2009. However, the field has opened up for him this year, with reigning champion Djokovic unable to compete and 40-year-old Federer taking his time to return from knee surgery.

Nadal, Djokovic and Federer are all tied on 20 grand slams each, meaning the next of the trio to win a major will set a new record.

While Nadal is hoping to go all the way in Melbourne, he insisted his career satisfaction does not depend on being the record holder.

"The fact that we are equal at 20, the only thing that says is that we share an amazing [time] of the history of our sport, and for me it's a real honour to be part of it, without a doubt," he said.

"I don't hope for anything. I just keep going. I am just enjoying playing tennis, as I said hundreds of times. Honestly, and from the bottom of my heart, I really don't [have certain expectations].

"Of course, I want to keep winning, but more than because I want to achieve or I want to have more than the others, because I love what I am doing. I want to keep doing this as long as possible.

"The last six months there have been a lot of doubts if I would be able to keep going. But now I feel good. We are in a position that I won a tournament, I'm in the semi-finals of the Australian Open, so that's amazing for me.

"In terms of what can happen in the future, honestly I really don't care that much. I don't believe that my happiness, my future happiness depends on if I achieve one more grand slam than the others or if the others achieve more grand slams than me.

"No, I am super satisfied and feel very lucky for all the things that happen to me. I have a way to approach life. You can't be always frustrated if the neighbour has a bigger house than you or a better phone or a better thing, no? I'm not going to be frustrated if Novak or Roger finishes their careers with more grand slams than me.

"Let's enjoy the situation, every one of us, we did very special things in our sport. Let's enjoy that."

Nadal lost to Djokovic in the Melbourne final in 2019. He has reached the showpiece match five times in total.

The world number five had not played a competitive game since August last year before he returned to action earlier this month, winning the Melbourne Summer Set.

Nadal had dropped just one set across the opening four rounds prior to his clash with Shapovalov, which finished 6-3 6-4 4-6 3-6 6-3.

"Yeah, I have been playing well," Nadal added. "To play at this level against a player like [Shapovalov], that he's one of the best players of the world, and see myself again competitive against these kinds of players, for me it's everything.

"I'm just enjoying every single moment, try my best playing with the highest positive attitude possible and with the right spirit."

Rafael Nadal shot down Denis Shapovalov's suggestion that he receives special treatment from umpires after an epic Australian Open quarter-final tussle.

Shapovalov fell short of an incredible comeback against the record-chasing Nadal, who prevailed 6-3 6-4 4-6 3-6 6-3 after over four hours of action on Rod Laver Arena.

The match was full of tension, with Shapovalov furious that Nadal escaped a time violation for taking too long between the first and second sets. 

After umpire Carlos Bernardes refused to call time on Nadal's changeover, Shapovalov lost his temper, bursting out: "You guys are all corrupt."

The players subsequently met at the net for a discussion, but Shapovalov was frustrated again when, before the deciding set, Nadal left the court for a medical timeout having struggled with a stomach issue, but then also had a toilet break.

Asked in his post-match news conference if he felt Nadal received preferential treatment, Shapovalov said: "Of course. 100 per cent he does. 100 per cent."

Shapovalov's comments were put to Nadal in the Spaniard's own media conference.

"No. Not in that case, no, no," Nadal responded.

"I really believe that on the court you don't deserve better treatment than the others. I really don't want it and I don't feel I have it.

"Without a doubt, even as everybody knows, I have a huge respect for Carlos and I think he's a great umpire. Is it not the case that he was always hard with me on court, no?

"I really believe that it's always in the mind that the top players get bigger advantages. And on the court it's not true. That's my feeling. I never feel that I had advantages on the court, and I really believe that he's wrong in that case.

"I honestly feel sorry for him. I think he played a great match for a long time. Of course, it's tough to accept to lose a match like this, especially after I was feeling destroyed and probably he felt that, [but] then I was able to manage to win the match.

"I wish him all the very best. He's young, I think we all make mistakes on our careers. I made a lot of mistakes too when I was younger, and probably he will understand later on after he thinks the proper way that probably he was not right today."

Nadal also explained why he had to be given an extended amount of time in the changeover between the first and second sets.

"I took some extra time at the end of the first set because I had to change everything there on the chair, in the changeover," he said.

"I think in that case normally at the end of the sets the umpire gives you some extra time, especially under these very humid conditions to change the clothes, because that's obvious that you can't play with the clothes in the condition that I was [in].

"I think in that moment Denis got p***** because the umpire called time and I needed like 30 seconds extra to keep changing my clothes.

"I think it's fair that Carlos gave me this extra time at that moment. I think Carlos made a small mistake in calling time. Normally at the end of the set, the umpire looks around and waits a little bit to call time until the player is a little bit ready when he's changing, no?

"Denis was wrong in that case. I understand that he just lost the set and in some way he wanted to keep playing quick, but I think he understands that normally you have some time to change your clothes."

Nadal improved his record in grand slam quarter-finals to 36-9. He is now 7-7 in Australian Open quarter-finals after surviving the Shapovalov battle, far worse than his record at the French Open (14-1), Wimbledon (7-0) and US Open (8-1).

Denis Shapovalov regrets labelling umpire Carlos Bernardes as "corrupt" but refused to relent on his view that Rafael Nadal "100 per cent" gets preferential treatment from officials.

Canadian Shapovalov fell short in a valiant comeback bid against all-time great Nadal, who eventually won through 6-3 6-4 4-6 3-6 6-3 after over four hours on Rod Laver Arena.

The 14th seed was left fuming between the first and set second, though, when he felt a time violation should have been given after Nadal made him wait for play to resume.

"Started the clock so long ago, he's still not ready to play. You've got to call him," Shapovalov said to Bernardes.

After Bernardes opted against doing so, Shapovalov said: "You guys are all corrupt."

"I think I misspoke when I said he's corrupt or whatever I said. It's definitely emotional, but I do stand by my side. I think it's unfair how much Rafa is getting away with," Shapovalov told a news conference when asked about the incident.

"I mean, I'm completely ready to play and the clock is ticking three, two, one, clicking towards zero, and I'm looking at the ump, and obviously I'm going to speak up and say something. 

"I've been ready to play for a minute and a half, and he tells me he's not going to give him a code violation because I'm not ready to play. To me, it's a big joke if somebody says that."

Shapovalov was further frustrated ahead of the deciding set where Nadal left the court for a medical check up having struggled with a stomach issue and also had a toilet break.

The 22-year-old felt the extended break quelled his growing momentum and that the elite players have different boundaries.

"And then after the fourth set, the guy goes – and for the same thing last year I wasn't allowed to take a toilet break when I asked for a medical," he added.

"He had already taken two medicals. He was getting medically evaluated, that's what the ump said after the fourth set, getting medically evaluated, and after the evaluation the guy goes and takes a toilet break.

"It's like, where is the line? Where are you going to step on the players and again, I respect everything that Rafa has done and I think he's an unbelievable player. 

"But there's got to be some boundaries, some rules set. It's just so frustrating as a player. You feel like you're not just playing against the player; you're playing against the umpires, you're playing against so much more.

"It's difficult. I mean, it was a big break after the fourth set for this reason, and the momentum just goes away. It's much more difficult to play, I think.

"Again, not trying to say anything against Rafa; he's a great player, I really respect all he's done, but I just think it's super difficult and super frustrating as an athlete to go up against all of this."

Asked if he feels Nadal gets preferential treatment, he added: "Of course. 100 per cent he does. 100 per cent. Every other match that I have played, the pace has been so quick because the refs have been on the clock after every single point.

"This one, after the first two sets it was like an hour and a half just because he's dragged out so much after every single point. He's given so much time in between sets and all this. It's just dragged out.

"Like I said, for the same reason I wasn't allowed to go to the washroom last year at the Australian Open because I had called a medical. I'm not arguing the fact that he had a medical or whatever it is. But how can you get evaluated medically and have a toilet break at the same break and just causing so much delay in the game?

"I mean, it's just not balanced."

Shapovalov and Nadal had a discussion at the net, but the former explained that it was an amicable exchange.

"It was nothing against Rafa. Rafa was serving and I would expect the umpire to be looking at Rafa and the umpire was staring me down. It didn't make sense to me," he said.

"Rafa is getting ready to serve, there's a clock right there, as an umpire you should be looking at the server. The guy is staring me down so I just looked at him like, 'Why are you looking at me?'

"It was shortly after I had said – obviously, like I said, I misspoke, but he was staring me down, so I felt like there was some feud or something. I looked at him.

"I was just explaining that to Rafa that it had nothing to do with him."

Nick Kyrgios is hoping to inspire the next generation of tennis stars after taking centre stage at the Australian Open with his run to the men's doubles semi-finals.

The 26-year-old fan favourite and partner Thanasi Kokkinakis downed sixth seeds Tim Puetz and Michael Venus 7-5 3-6 6-3 in Tuesday's quarter-final clash.

The contest was watched by a lively crowd on Kia Arena and overshadowed Rafael Nadal's five-set win over Denis Shapovalov on Rod Laver Arena at the same time.

Kyrgios and Kokkinakis, who were given a wildcard into the draw after being knocked out of the singles early on, will now face Marcel Granollers and Horacio Zeballos.

"I'm not finished – I want to win this f****** thing," Kyrgios declared in his on-court interview. "We know what we do well and it's world-class. 

"That's what we'll do again. I just want to play and give the people of Australia a show and genuinely grow the sport of tennis."

Kyrgios showed his caring side early in the match when handing a racket to a fan in the crowd after accidentally hitting the youngster with one of Kokkinakis' faulted balls.

The Australian public have embraced the pair's deep run in the competition and Kyrgios, often a controversial character, is glad to see so many younger spectators watching on.

"There is no way around it; me and Thanasi are definitely role models to the youth in Australia. We obviously attract that crowd," he said at his post-match news conference.

"I know that over the years I haven't been the best role model, but I was just learning how to deal with everything. 

"I think now at 26 I have matured, and I've definitely realised that a lot of young kids and people, even people that are low on confidence, they do look towards us.

"We are not special people. We're normal humans that you might see walking in Australia, and we are now in the semi-finals of a grand slam.

"I feel like I think we are just relatable. I think that's what's the best thing about it. They go out and get behind their mates. Most of the guys in the crowd are our mates.

"You've got Roger Federer and these guys that are just once-a-generation athletes. I can't be like that. We're not like that. I feel it has to be people that are a bit more relatable."

The Aussie pair's next opponents Granollers and Zeballos have won six tour-level titles as a team, but have never gone all the way at a grand slam.

Kokkinakis is hoping to have similar backing from the expectant home fans on Thursday.

Asked about the support he and his doubles partner have received so far, Kokkinakis said: "The rowdier the better. Sink p*** and come here.

"The next guys are experienced veterans, but we're going to keep playing how we play, have fun and enjoy the crowd."

Rafael Nadal survived a huge scare to reach the Australian Open semi-finals with an enthralling five-set win over Denis Shapovalov on Tuesday.

Nadal is two wins away from a record-breaking 21st grand slam title after enduring a four-hour epic to beat Shapovalov 6-3 6-4 4-6 3-6 6-3 on Rod Laver Arena.

A year after losing from two-sets-to-love up at the same stage to Stefanos Tsitsipas, there was almost a repeat for Nadal.

But, seemingly battling a stomach issue, the Spaniard remained alive in his bid to set the outright record for most grand slams won by a man, following a thrilling battle that lasted four hours, eight minutes.

The success saw Nadal – who will face either Matteo Berrettini or Gael Monfils in the last four – reach his 36th career grand slam semi-final and seventh at Melbourne Park, where he claimed the title in 2009.

Nadal landed the first blow with a break to love in the fourth game.

A superb forehand winner down the line got Nadal going before three wild forehands in a row from Shapovalov saw him fall 3-1 behind.

Shapovalov was unable to make any inroads against the Nadal serve, winning just five return points in a 39-minute opening set.

The Canadian was angry with chair umpire Carlos Bernardes' decision not to give Nadal a time violation between sets and the players unusually met at the net before the second game of the second set.

Nadal needed a tough hold during a 12-point sixth game and he capitalised in the next, an overhead securing the break after Shapovalov had sent a forehand well long at 30-30 to end a point he had been in complete control of.

Nadal closed out the set, but found trouble in the sixth game of the third as he faced break points for the first time after a double fault.

After saving both and holding serve, Nadal was broken at the key time – when serving to stay in the set – as Shapovalov delivered a backhand cross-court winner to extend the contest.

The momentum had well and truly swung and a double fault from Nadal saw Shapovalov break for 3-1 in the fourth set.

Approaching the three-hour mark, Nadal required a medical timeout, seemingly suggesting an issue with his stomach.

Shapovalov found himself in some trouble trying to level the match, but recovered from 15-40 to force a fifth set.

Nadal – who had been beaten from two-sets-to-love up just twice previously in his grand slam career – had to save a break point in the opening game of the decider, a volley winner to hold drawing huge cheers from the Rod Laver Arena crowd.

Instead, Shapovalov played a loose game, two wayward forehands, a double fault and a framed backhand giving Nadal a break and 2-0 lead.

Nadal, looking far more energetic, saved two break points in the third game before becoming more comfortable on serve on his way to the last four, Shapovalov smashing his racquet after match point.

DATA SLAM: Nadal overcomes major Melbourne hurdle … just

Nadal improved his record in grand slam quarter-finals to 36-9, but the last eight has often been a problem in Melbourne during his incredible career.

He is now 7-7 in Australian Open quarter-finals after surviving the Shapovalov battle, far worse than his record at the French Open (14-1), Wimbledon (7-0) and US Open (8-1).

WINNERS/UNFORCED ERRORS
Nadal – 41/28
Shapovalov – 53/51

ACES/DOUBLE FAULTS
Nadal – 8/11
Shapovalov – 20/5

BREAK POINTS WON
Nadal – 3/7
Shapovalov – 2/8

Denis Shapovalov hit out at chair umpire Carlos Bernardes in an extraordinary outburst during his Australian Open clash against Rafael Nadal.

Shapovalov was furious with Bernardes' decision not to call a time violation against Nadal after the Spaniard left him waiting between the first and second sets on Rod Laver Arena on Tuesday.

Nadal had taken the first set 6-3, but forced the Canadian 14th seed to wait before he could serve to start the second.

"Started the clock so long ago, he's still not ready to play. You've got to call him," Shapovalov said to Bernardes.

After Bernardes opted against doing so, Shapovalov said: "You guys are all corrupt."

Nadal and Shapovalov met at the net between the first and second games of the set in a brief discussion that eased the tension.

After Nadal led 6-3 6-4, Shapovalov hit back to take the third set 6-4 on a hot day in Melbourne.

Daniil Medvedev's temper threatened to boil over during his match against Maxime Cressy, as the world number two reflected on a "crazy" final set.

Medvedev beat Cressy 6-2 7-6 (7-4) 6-7 (4-7) 7-5 on Monday to ensure his place in the quarter-finals of the Australian Open.

The second seed is the fifth Russian man in the Open Era to reach the quarter-finals in Melbourne on multiple occasions, joining Yevgeny Kafelnikov (five), Nikolay Davydenko (four), Aleksandar Metreveli and Marat Safin (both three).

Medvedev had it far from easy against the world number 70, who reached the final of the Melbourne Summer Set earlier this month, losing to Rafael Nadal, and the match lasted three hours and 30 minutes on Margaret Court Arena.

Indeed, Medvedev was extremely tense in the fourth and what proved to be final set, as he squandered eight chances to break before finally doing so to nudge himself into a 6-5 lead. 

His temper frayed at 2-2, however, with Medvedev shouting: "It's simply unbelievable how lucky he is. I've never seen anything like this in my life."

Medvedev eventually served out the win, taking the first match point on offer, but the US Open champion knew he had been in a battle.

"He really did [serve and volley] well," Medvedev said. "First set I had control, but the second set I didn't manage to break him but won the tie-break and just wanted to continue this way.

"When I lost the third [set] and when I had eight break points in the fourth set, I was like, come on. Some of them I could have won, but he played well, but on the last one I played well.

"It was not easy. If I didn't win the fourth [set] I'd have probably been in a difficult mental shape because I had so many breakpoints. Hell of a match. The fourth set was crazy."

Overall it was a deserved win for Medvedev, who made only 11 unforced errors in contrast to Cressy's 49, and even if he only took three out of 12 break points, the 25-year-old offered up just one to his opponent, which the French-born American failed to capitalise on.

Another annoyance for Medvedev was that he was again scheduled to play on Margaret Court Arena, rather than the crown jewel at Melbourne Park, Rod Laver Arena.

"I really don't know what I should do to play on centre court here," he told reporters.

Next up for Medvedev is a quarter-final tie against ninth seed Felix Auger-Aliassime.

Medvedev has defeated the 21-year-old Canadian in all three of their previous meetings on the ATP Tour, including in his successful run to US Open glory last year, and in the ATP Cup earlier this month.

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."

Denis Shapovalov said it is a privilege to be facing Rafael Nadal in the Australian Open quarter-finals after his win over Alexander Zverev, who conceded "everything" went wrong.

Zverev had been looking sharp in Melbourne over the last week, with the world number three not dropping a single set en route to the last 16.

Yet the Olympic gold medallist was on the end of a straight-sets loss on Sunday as he went down 6-3 7-6 (7-5) 6-3 to Shapovalov.

Zverev made 32 unforced errors, five fewer than Shapovalov, and managed to convert only two of five break points, with the German winning 46/67 first-serve points.

Asked what went wrong, Zverev bluntly told reporters: "Everything.

"It's no one else's fault. It's not the coach's fault, it's not my team's fault, it's no one else's fault. It's purely me.

"As world number three, I have to take responsibility for the things I do and don't do.

"I give credit to Denis. It's incredible that he's in the quarters, I think he deserves it. He's done a lot of work, improved his game.

"But I've got to look at myself. Today was just, in my opinion, awful from my side."

Shapovalov had lost to Zverev in the ATP Cup earlier this month, but after Sunday's win the duo's head-to-head record stands at 4-3 in the latter's favour.

The 22-year-old Canadian will now face Nadal, with the 20-time grand slam winner having progressed to his 14th Australian Open final by defeating Adrian Mannarino.

Nadal holds a 3-1 head-to-head record against Shapovalov, though this will be the first time the pair have met in a major.

"It's always an honour to go up against a guy like Rafa," said Shapovalov after reaching his first Australian Open quarter-final.

"It's always going to be a battle against him. It's going to be a tough one and I'm definitely going to enjoy it."

Reflecting on just his second career win over a player in the top five, Shapovalov said: "I think off the ground I was playing really well, really feeling my shots off both wings.

"I played pretty smart, it felt like things were going my way early on. I lost a little bit of momentum midway in the second set but fought well to come back and just kind of rolled with it after."

It was also the first time in the tournament that Shapovalov had not had to go to at least four sets.

"It's probably the one I least expected to finish in three. I'm very happy with my performance, definitely happy with where my game is at," he added.

Rafael Nadal reflected on being "a little bit lucky" to win a crucial first-set tie-break after he progressed to the Australian Open quarter-finals.

Nadal saw off Adrian Mannarino 7-6 (16-14) 6-2 6-2 on Sunday to seal his place in the last eight of the season's first grand slam for the 14th time.

The 20-time major winner, however, needed to overcome a stern challenge in the first set, winning a 30-minute tie-break.

Indeed, Nadal had to claw back four set points in the tie-break, before an early break in the second paved the way for a much simpler time from then on in against an opponent who had played late into the night in the previous round.

"The first set had been very, very emotional," Nadal said. "Anything could happen there. I was a little bit lucky at the end.

"Everybody knows how mentally [tough] this game is.

"It was a tough one and after that crazy first set, I think it was so important the break at the beginning of the second set.

"His ball was very difficult to control, very flat, very fast. I'm very happy that I survived that first set, without a doubt."

Nadal has only won the Australian Open once before, back in 2009, but his quest to land a record 21st grand slam title is going well so far.

"In this tournament I think I have been in a very good position to fight for it a lot of times in my career," Nadal added.

"I've always enjoyed playing in it a lot of times in my career. It's true that I was a little bit unlucky with injuries here, and sometimes I was unlucky because my opponents were a little bit better than me!

"But I've always enjoyed it and I'm very happy to be back in a quarter-final, it means a lot to me."

The Spaniard's hopes received another boost on Sunday, when world number three Alexander Zverev was knocked out by Canada's Denis Shapovalov, who will be Nadal's quarter-final opponent.

It will mark the fifth contest between 22-year-old Shapovalov and Nadal, with the latter having won three of their previous encounters.

"Shapovalov is a player with amazing potential," Nadal said.

"Everybody knows that when he's playing well, it's very difficult to stop him with [his] big serve, amazing forehand, and he's very quick."

Rafael Nadal overcame a marathon first-set tiebreaker to move into the Australian Open quarter-finals with a straight-sets win over French veteran Adrian Mannarino on Sunday.

Nadal continued on his search for a record-breaking 21st grand slam title with the 7-6 (16-14) 6-2 6-2 victory at Rod Laver Arena.

The Spaniard will take on either third seed Alexander Zverev or Canadian 14th seed Denis Shapovalov in the last eight on Tuesday. The win marks Nadal's 14th appearance in the Australian Open quarters.

Nadal has only dropped one set in his first four matches at the Australian Open but the opening set against Mannarino was epic, with the sixth seed edging his opponent after 80 minutes.

The 2009 Australian Open winner trailed 3-0 in the tie-break but fought back to level it up, eventually taking the set 16-14 with his seventh set point.

Nadal assumed complete control from that set on, dominating the second and third to win in two hours and 40 minutes.

The 35-year-old was powerful, sending down 16-7 aces, while he won 88 percent on his first serve across the match. Nadal only offered up two break points for the match.

DATA SLAM: Nadal on the right track

Nadal has dropped 38 games across his four matches at the Australian Open, making light work of Mannarino in the latter two sets which collectively took as long as the first.

The Spaniard won in Melbourne in 2009 but lost finals in 2012, 2014, 2017 and 2019, yet without Novak Djokovic and Roger Federer at this year's event it looms as his best chance for years to lift the title and he seems in good health and form. 

WINNERS/UNFORCED ERRORS

Nadal – 42/22

Mannarino – 37/34

ACES/DOUBLE FAULTS

Nadal – 16/6

Mannarino 7/4

BREAK POINTS WON

Nadal – 5/17

Mannarino – 1/2

Rafael Nadal overcame a marathon first-set tiebreaker to move into the Australian Open quarter-finals with a straight-sets win over French veteran Adrian Mannarino on Sunday.

Nadal continued on his search for a record-breaking 21st grand slam title with the 7-6 (16-14) 6-2 6-2 victory at Rod Laver Arena.

The Spaniard will take on either third seed Alexander Zverev or Canadian Denis Shapovalov in the last eight on Tuesday.

Nadal has only dropped one set in his first four matches at the Australian Open but the opening set against Mannarino was epic, with the sixth seed edging his opponent after 80 minutes.

The 2009 Australian Open winner trailed 3-0 in the tie-break but fought back to level it up, eventually taking the set 16-14 with his seventh set point.

Nadal assumed complete control from that set on, dominating the second and third to win in two hours and 40 minutes.

The 35-year-old was powerful, sending down 16-7 aces, while he won 88 percent on his first serve across the match. Nadal only offered up two break points for the match.

DATA SLAM: Nadal on the right track

Nadal has dropped 38 games across his four matches at the Australian Open, making light work of Mannarino in the latter two sets which collectively took as long as the first.

The Spaniard won in Melbourne in 2009 but lost finals in 2012, 2014, 2017 and 2019, yet without Novak Djokovic and Roger Federer at this year's event it looms as his best chance for years to lift the title and he seems in good health and form.

WINNERS/UNFORCED ERRORS

Nadal – 42/22

Mannarino – 37/34

ACES/DOUBLE FAULTS

Nadal – 16/6

Mannarino 7/4

BREAK POINTS WON

Nadal – 5/17

Mannarino – 1/2