Novak Djokovic limped into his 10th Australian Open final with a record-breaking 27th consecutive win in Melbourne against Tommy Paul on Friday.

Djokovic, who has never lost either a semi-final or a final at the first major of the season, came through 7-5 6-1 6-2 to eclipse the Andre Agassi win streak he had tied with a last-eight defeat of Andrey Rublev.

Despite a similar scoreline, however, this was not quite as straightforward as that prior match – particularly in a first set the nine-time champion threatened to throw away.

Djokovic also appeared to be suffering again with the hamstring injury that hampered his preparation for the tournament, but he now needs to come through just one more match, against Stefanos Tsitsipas, to add another title.

The semi ended as it started, with Djokovic in control, yet there was a blip when he looked to be coasting through the opener.

Having just passed up his first set point, Djokovic confronted the umpire when he was not allowed time to take a towel and appeared to lose his focus, allowing Paul to win the next seven points en route to consecutive breaks – the second clinched with a stunning 30-stroke rally.

Finally, with the set level, Djokovic regained some composure and soon enough took a long-awaited second set point before cupping his ear to the Melbourne crowd and being greeted with jeers in return.

It quickly became clear Paul had missed his chance as Djokovic cruised, his primary foe now that troublesome injury.

After stretching out his leg during the first-set collapse, the Serbian appeared in discomfort throughout a dominant second, asking for ice at 5-0 up ahead of Paul's sole hold in the set.

That ailment did not prove enough to derail Djokovic, though, as the third set followed a similar theme in an ultimately commanding semi success.

Data Slam: Djokovic closing on career-best streak

Now the sole owner of the longest Open Era winning streak in the main draw of the men's singles tournament at the Australian Open, Djokovic will match his best run at any grand slam if he beats Tsitsipas, having claimed 28 straight victories at Wimbledon.

Only Roger Federer (40 at the US Open and 40 at Wimbledon) and Bjorn Borg (41 at Wimbledon and 28 at the French Open) have previously had 27-match win sequences at two different majors.

ACES/DOUBLE FAULTS

Djokovic – 12/5
Paul – 4/0

WINNERS/UNFORCED ERRORS

Djokovic – 31/39
Paul – 18/32

BREAK POINTS WON

Djokovic – 7/11
Paul – 2/9

Victoria Azarenka was not impressed with being asked a "provocative question" about a pro-Russia demonstration at the Australian Open after her semi-final defeat to Elena Rybakina.

Azarenka's quest to end a 10-year wait for a third grand slam singles title ended when the Belarusian was beaten 7-6 (7-4) 6-3 by the Wimbledon champion on Thursday.

The 33-year-old's loss on Rod Laver Arena came after Novak Djokovic's father, Srdjan, was seen with supporters of Russian president Vladimir Putin at Melbourne Park.

Pro-Putin agitators staged a rally outside Rod Laver Arena, after Djokovic beat Russian Andrey Rublev to reach the last four on Wednesday, with four people later questioned by police following allegations that security guards were threatened.

Rublev has previously expressed his opposition to Russia's war in Ukraine, which has been ongoing since last February.

Putin supporters chanted and carried Serbian and Russian flags. One man appeared to be wearing a T-shirt adorned with the letter 'Z' – used as a pro-war symbol in Russia.

Srdjan Djokovic was seen standing with the group alongside a man holding a Russian flag with Putin's face on it. According to reports, he said: "Long live the Russians."

Tennis Australia banned Russian and Belarusian flags from being taken into grounds, after a spectator was reported to security for displaying one during a match between Ukraine's Kateryna Baindl and Russian Kamilla Rakhimova.

Azarenka was not happy with being asked about political issues during her post-match press conference.

She told a reporter: "You're here talking about it right now, so obviously it's a topic you want to continue to bring up and up and up again. I don't know what you want me to say."

Asked if Djokovic might be affected by the incident, Azarenka replied: "I don't know what it has to do with Novak at all, to be fair, so...

"I've spoken to actually a security guard today who was walking me to practice every day. I've known him for years. I just asked him what was the accident [sic]. He explained to me.

"I don't know what you guys want us to do about it. Like talk about it? I don't know what's the goal here that it's continuously brought up. These incidents that in my opinion have nothing to do with players, but somehow you keep dragging players into it.

"So what's the goal here? I think you should ask yourself that question, not me.

"Whatever the answer I'm going to give to you right now, it's going to be turned whichever way you want to turn it to. So does it bother me? What bothers me is there's real things that's going on in the world. I don't know. Are you a politician? Are you? Are you covering politics?"

When the reporter said: "No, I'm a sports journalist", Azarenka responded by saying: "And I'm an athlete. You're asking me about things that maybe somebody says are in my control, but I don't believe that.

"I don't know what you want me to answer. If it's a provocative question, then you can spin the story however you want."

The father of Novak Djokovic is facing fierce criticism after posing with supporters of Russian president Vladimir Putin at the Australian Open.

Srdjan Djokovic is in Melbourne to support his son as he chases a 10th grand slam title in Australia and a record-equalling 22nd men's singles major overall.

He has been in the player's box for his 35-year-old son's matches, cheering the Serbian into the semi-finals.

The tournament was rocked on Wednesday by a group of pro-Putin agitators staging a rally outside Rod Laver Arena, after Djokovic beat Russian Andrey Rublev to reach the last four.

Rublev has previously expressed his opposition to Russia's war in Ukraine, which has been ongoing since last February.

The Putin supporters chanted and carried flags of Serbia and Russia. One man appeared to be wearing a T-shirt adorned with the letter 'Z' – used as a pro-war symbol in Russia.

Srdjan Djokovic appeared to happily stand with the group outside the stadium court. According to reports, he said: "Long live the Russians."

Tennis Australia banned Russian and Belarusian flags from the event earlier this month, after a spectator was reported to security for displaying one during a match between Ukraine's Kateryna Baindl and Russian Kamilla Rakhimova.

Russian and Belarusian players have not been able to play under their countries' flags since Putin's regime launched its invasion.

In a statement, Tennis Australia reacted to Wednesday's incident, saying: "A small group of people displayed inappropriate flags and symbols and threatened security guards following a match on Wednesday night and were evicted. One patron is now assisting police with unrelated matters.

"Players and their teams have been briefed and reminded of the event policy regarding flags and symbols and to avoid any situation that has the potential to disrupt. We continue to work closely with event security and law enforcement agencies."

Tennis journalist Ben Rothenberg wrote of the Srdjan Djokovic incident: "This is…quite a mess for the #AusOpen, to say the least. The levels of security breakdowns that allowed for this are staggering."

Another tennis reporter, Carole Bouchard, added: "Sorry but they shouldn't warn Srdjan Djokovic after that. They should remove his credential. This is outrageous."

There has been no suggestion from tournament officials that Srdjan Djokovic will face such action, and it remains to be seen whether he attends his son's semi-final against American Tommy Paul on Friday.

Ukrainian WTA player Marta Kostyuk addressed the issue on Twitter with a series of nine exploding head emojis.

Before footage emerged of Srdjan Djokovic alongside the group, Ukraine's ambassador to Australia and New Zealand, Vasyl Myroshnychenko, expressed his dismay.

He wrote on Twitter: "It's a full package. Among the Serbian flags, there is: a Russian flag, Putin, Z-symbol, so-called Donetsk People's Republic flag. It's such a disgrace."

Four people have been questioned by police after displaying pro-Russia symbols and allegedly threatening security guards at the Australian Open.

Tennis Australia banned Russian and Belarusian flags from the event at Melbourne Park earlier this month, after a spectator was reported to security for displaying one during a match between Ukraine's Kateryna Baindl and Russian Kamilla Rakhimova.

Russian and Belarusian players have not been able to play under their countries' flags since Vladimir Putin's regime launched an invasion of Ukraine last February.

On Wednesday, spectators were seen displaying a Russian flag during Andrey Rublev's quarter-final defeat against Novak Djokovic, while one man appeared to be wearing a t-shirt adorned with the letter 'Z' – used as a pro-war symbol in the country.

The man was seen in conversation with an Australian Open official at Rod Laver Arena, while social media footage later showed a flag featuring Putin's face being waved outside the venue. 

A widely reported statement from Tennis Australia read: "Four people in the crowd leaving the stadium revealed inappropriate flags and symbols and threatened security guards.

"Victoria Police intervened and are continuing to question them.

"The comfort and safety of everyone is our priority and we work closely with security and authorities."

Novak Djokovic needs no extra motivation as he aims to win the Australian Open for a 10th time, as his confidence levels continue to rise.

Djokovic stormed into the semi-finals with a 6-1 6-2 6-4 thrashing of Andrey Rublev on Wednesday.

The Serbian has never lost a semi-final in Melbourne, while he has matched Andre Agassi for the longest Australian Open win streak in the Open Era (26).

Asked if this is as confident he has ever felt at the season's opening major, the 21-time grand slam champion told reporters: "I can't really say that this is as confident that I ever felt because I've had some incredible seasons, years here in Australian Open, some matches that are really unforgettable for me.

"I've been fortunate to really live through a lot of success in Australian Open. But [in the] last two matches, playing against two guys that are really good players, in-form players, to beat them dominantly in three sets is something that sends a message to all my opponents remaining in the draw.

"With this kind of game, of course the confidence level rises. I feel good on the court, better and better as the tournament progresses.

"I've been in this situation so many times in my life, in my career, never lost a semi-final at the Australian Open. Hopefully, that will stay the same."

When it was put to Djokovic that he is even more motivated at the age of 35, Djokovic said: "I don't think that I lack determination.

"I always try to give my best, particularly in grand slams, because at this stage of my career those are the tournaments that count the most, of course.

"You could say that there is something extra this year. You could say because [of] the injury, [and] what happened last year. I just wanted to really do well.

"I have a perfect score in Australian hard courts, in Adelaide and here. I've been playing better and better. I couldn't ask for a better situation to be in at the moment."

Djokovic will face Tommy Paul in the last four, after the American defeated compatriot Ben Shelton. 

Paul has never faced Djokovic, who nevertheless knows what to expect.

"I know how he plays. I never faced him on the court, but he's been around for a few years," said Djokovic.

"I watched him play quite a bit, especially during this tournament. He's been playing probably tennis of his life. Very explosive, very dynamic player. 

"I think he can hit all the spots with the serve. A very complete player. First semi-final for him, so of course he doesn't have much to lose."

Three American men progressed to the quarter-finals in Melbourne for the first time since 2000, and the first time in any grand slam since 2005, and Djokovic believes a strong United States contingent is crucial.

"America for our sport is an extremely important country," Djokovic said. "We have some of the biggest tournaments in the world played there.

"I think it is important that we see successful American men and women. Now you have a list of maybe four or five young players that are knocking on the door of the top level. I think that's great for our sport."

Novak Djokovic felt he played his best tennis in Wednesday's straight-sets win over Andrey Rublev which resulted in his 10th semi-final appearance at the Australian Open.

Djokovic produced a dominant performance as he ran out a 6-1 6-2 6-4 victor against Rublev, who has now lost each of his seven career grand slam quarter-finals.

Having missed last year's tournament, nine-time Australian Open champion Djokovic has now won 26 consecutive matches at the event, matching Andre Agassi's record streak in the men's singles draw, set between 2000 and 2004.

Speaking courtside after securing another routine win, Djokovic insisted his opponent deserved more but said he had hit top form at Rod Laver Arena.

"Overall, I think the scoreline of the first two sets does not speak to the reality of the match, there were some really close games," Djokovic said.

"Andrey's a great opponent, a great player. I have tonnes of respect for him. He has one of the biggest forehands and is one of the quickest players on the Tour.

"I knew what the game plan was, but it's one thing to imagine how you want to play and another to execute it on the court. 

"If I had to sum it up, in all the important moments and important shots, I found my best tennis. That's what makes me most pleased tonight."

Djokovic described his 6-2 6-1 6-2 demolition of Alex de Minaur in the last 16 as his best performance of the year on Monday, and the Serbian ranked his display against Rublev as a close second.

"I would rank it as number two, but very close to the performance of two nights ago!" Djokovic said.

"I could not be happier with my tennis, honestly. I've been playing very solid from the back of the court and I really love playing under these conditions and on this court.

"I've said it many times, but I love playing here. It's definitely the most special court for me."

Djokovic's pursuit of a record-extending 10th title at Melbourne Park looked to be in doubt as he struggled with a hamstring injury in the early rounds, but after moving freely on Wednesday, the 35-year-old credited his medical team's efforts.

"On the days off it's important to be smart and wise with the body in these particular circumstances. It's important to recover and get ready for the next challenge," he said. 

"I just want to give huge credit to my physiotherapist Miljan [Amanovic], he has been through hell with me over the last 10 days with all the treatments. He deserves huge credit and I'm so grateful to him."

Novak Djokovic claimed a share of another piece of history on Wednesday as he won his 26th consecutive match at the Australian Open.

Djokovic took the title in Melbourne in 2019, 2020 and 2021 before he was denied entry last year and subsequently deported due to his COVID-19 vaccination status.

The 21-time grand slam champion is back this year and has continued his winning run, defeating Roberto Carballes Baena, Enzo Couacaud, Grigor Dimitrov, Alex de Minaur and, on Wednesday, Andrey Rublev.

That quarter-final success saw Djokovic match Andre Agassi for the longest Australian Open win streak in the Open Era.

Agassi won 26 in a row between 2000 and 2004, likewise winning three titles, missing one tournament and then reaching a semi-final before finally being beaten.

Djokovic will hope to avoid the same fate as he bids for the outright record against Tommy Paul in the semis, although he has never been beaten in a last-four match in Melbourne, winning the title on the previous nine occasions he reached this stage.

Those nine titles are a record for any man at the Australian Open and for Djokovic at any one major.

This is also now Djokovic's favourite grand slam in terms of match wins, with the 6-1 6-2 6-4 dismantling of Rublev his 87th victory in Melbourne. It passed his 86 wins at Wimbledon.

Novak Djokovic cruised into the Australian Open semi-finals with a crushing 6-1 6-2 6-4 win against Andrey Rublev, producing a near-faultless display at Rod Laver Arena.

The 21-time grand slam winner needed just over two hours to reach his 10th semi-final at the event – making him just the second player to hit double figures in the Open Era after Roger Federer (15).

Djokovic dominated from the off, breaking Rublev at just the second attempt and repeating the trick in the sixth game after angrily calling out a heckler between points.

Rublev faced seven break points in a one-sided opener as Djokovic pushed him back with a series of powerful groundstrokes, and there was to be little respite for the Russian in the second set.

Rublev gave up two breaks either side of a back-and-forth game in which Djokovic overcame intense pressure to hold, with the world number six ranting at the umpire over the time Djokovic took to serve. 

Djokovic then held serve in another lengthy game to see out the second set, before securing another swift break at the outset of the third as a frustrated Rublev hurled his racquet to the ground.

While Rublev improved in a low-key third set, Djokovic's excellent service game ensured the Russian became just the second male player in the Open Era to lose each of his first seven major quarter-finals, after Tommy Robredo.

Djokovic, meanwhile, is in ominous form in his pursuit of a record-extending 10th Australian Open title, moving freely after being troubled by a hamstring injury in the earlier rounds, as he teed up a meeting with American Tommy Paul.

Data slam: Djokovic as good as ever in resounding win

Having missed out on the Australian Open last year following his deportation from the country, Djokovic has resembled a man on a mission this time around as he looks to get his hands on the trophy for a fourth time in five years.

Djokovic is just the seventh male player to reach the Australian Open's last four after turning 35 in the Open Era, after Ken Rosewall, Roger Federer, Mal Anderson, Rafael Nadal, Arthur Ashe and Colin Dibley.

ACES/DOUBLE FAULTS

Djokovic – 14/5
Rublev – 6/3

WINNERS/UNFORCED ERRORS

Djokovic – 32/21
Rublev – 26/29

BREAK POINTS WON

Djokovic – 5/14
Rublev – 0/5 

Victoria Azarenka sympathised with Novak Djokovic as she stated tennis players are "not villains" after reaching the Australian Open semi-finals for the first time in a decade.

Azarenka beat Jessica Pegula 6-4 6-1 on Rod Laver Arena on Tuesday to set up a last-four meeting with Elena Rybakina.

Former world number one Azarenka came in for criticism when she took a medical timeout during her last semi-final at Melbourne Park back in 2013, delaying her match against Sloane Stephens by 10 minutes.

The Belarusian, who is now 33, returned to beat Stephens and went on to defend successfully her title.

Questions have been raised over the extent of a hamstring issue nine-time Australian Open champion Djokovic has been contending with as he attempts to match Rafael Nadal's tally of 22 major triumphs this weekend.

Azarenka feels it is out of order for such suspicions to be raised by people who are not aware of the facts.

She said: "Do you know what happened 10 years ago? That's the thing.

"It was one of the worst things that I've ever gone through in my professional career, the way I was treated after that moment, the way I had to explain myself until 10:30pm at night because people didn't want to believe me. I actually can resonate what Novak said the other day.

"There is sometimes incredible desire for a villain and a hero story that has to be written. But we're not villains, we're not heroes, we are regular human beings that go through so many, many things.

"Assumptions and judgements, all those comments, are just s*** because nobody's there to see the full story. It didn't matter how many times I said my story, it did not cut through.

"Actually it's funny that you're saying that because I was thinking about it. It took me 10 f****** years to get over it. I finally am over that."

Asked to expound what the judgements or assumptions she experienced were, Azarenka said: "I've been called that I'm cheating, that I'm faking, that I was trying to throw people off their game. It's everything that is so wrong about my character if somebody actually knows me.

"At some point I've heard that she has this thing that is bad or this thing is bad, whatever. At some point you're like, 'Really? Am I?'. Those doubts starts to creep in.

"Now I just don't care. I am more and more confident in what I know about myself, and I'm at peace with that. Those comments, judgements, they're there. I notice them. But I don't care."

Novak Djokovic felt "fantastic" as he outclassed Alex de Minaur with his best performance of the year in the fourth round of the Australian Open.

The nine-time champion outclassed Australian De Minaur on Rod Laver Arena, winning 6-2 6-1 6-2 in two hours and six minutes on Monday.

A hamstring injury has been a concern for Djokovic as he bids to win a record-equalling 22nd grand slam title at Melbourne Park, but he was moving freely as he ruthlessly breezed into the quarter-finals.

The fourth seed from Serbia did not face a break point, delivering another returning masterclass and serving superbly to set up a meeting with Russian Andrey Rublev.

Djokovic has won 25 consecutive Australian Open matches – just one shy of Andre Agassi's record – and the 35-year-old rated his demolition of De Minaur as his most impressive of the year.

He said: "Definitely the best tennis I've played this year, this tournament, so far this season. Best match. I'm really glad because obviously as the tournament progresses, the matches are going to get tougher. I'm really glad to manage to win the way I did.

"To feel really great in terms of mobility and movement of my leg, which is great news. So all in all, perfect match for me."

Djokovic did not feel any pain as he brushed De Minaur aside to move into his 13th Australian Open quarter-final and the last eight of a major for the 54th time. 

He added: "We take it day by day. We do a lot of things. It's been honestly exhausting to be involved in a lot of different treatments and machines and stuff that we do.

"At the same time it was necessary. It is necessary in order to get myself in a condition to play. So I'm really glad that my body has responded really well.

"Tonight I didn't feel any pain. I moved as well as I have the whole tournament. It means we are progressing in the right direction.

"Some days you feel good; some days maybe not as. So, as I said on the court, I do not want to celebrate too early because I don't know how the body's going to respond tomorrow and for the next match. What I felt tonight is fantastic."

Andrey Rublev suggested he had given up hope at 5-0 down in the deciding tie-break against Holger Rune.

Rublev prevailed 6-3 3-6 6-3 4-6 7-6 (11-9) in a three-and-a-half-hour thriller against the Dane on Monday to progress to the quarter-finals of the Australian Open.

The Russian salvaged two match points to force a tie-break at the end of the fifth set, but found himself staring down the barrel of an exit from the season's first major as Rune cruised into a commanding lead.

Yet Rublev won nine of the next 11 points and, at the third attempt, sealed a remarkable victory when a shot that hit the net cord trickled just over.

"Yes, I was lucky," Rublev said in his post-match press conference.

"I started to think it's over, for sure. Somehow... I was able to start to play with much more focus."

Asked how he maintained his self-belief, Rublev quipped: "I was not believing."

"Beginning of the fifth set, I was completely frozen. Inside I was thinking that I cannot [win]. I cannot move. I cannot hit.

"I was thinking it's over. He's playing much better than me. He deserves to win. He's going for the shots. He's doing something that normally I am supposed to do if I want to win the match.

"I let it go. Somehow the stress that I had, I was able to relieve it. At the end of the match I played much better than during the rest of the match."

During his on-court interview, Rublev said: "I was never able to win matches like this, this is the first time I've won something like this.

"At a very special tournament, to be in a quarter-final, it's something I'll remember all my life. I'm shaking!"

Rublev has qualified for his second Australian Open quarter-final, and his seventh at a grand slam. However, he has lost all of those matches.

The world number six, seeded fifth in Melbourne, has won three successive matches that have gone the distance, a career-first. Now, he will meet nine-time champion Novak Djokovic, who defeated Alex de Minaur in straight sets.

"I don't know," Rublev replied when asked if Djokovic was unbeatable. 

"Novak is very tough player to beat, especially in the slams.

"He has the best experience to win these matches. He's one of the best in history. The only chance I have is if I play my best tennis, just fight for every ball, and that's it. That's the only chance."

Novak Djokovic charged into the quarter-finals of the Australian Open with a straight-sets demolition of Alex de Minaur.

The nine-time champion was outstanding on Rod Laver Arena, starting the second week with a ruthless 6-2 6-1 6-2 victory over Australian De Minaur.

There were no signs of a hamstring injury that Djokovic has been nursing, other than strapping on his left leg, as he booked a last-eight meeting with Andrey Rublev.

The tournament favourite, going for a record-equalling 22nd grand slam title, did not face a break point as he sealed a dominant victory in just two hours and six minutes at Melbourne Park on Monday.

An aggressive Djokovic took complete control after De Minaur was broken to love when he netted to go 4-2 down, the Serb wrapping up the first set when his opponent overcooked a forehand.

The fourth seed won nine games in a row in a one-sided second set, producing an exhibition of returning with pinpoint accuracy off both wings and serving superbly.

Djokovic was relentless, the depth of his groundstrokes enabled him to dictate rallies, and the 35-year-old produced a huge second serve followed by a backhand winner to go two sets up in just an hour and 15 minutes.

The Belgrade native was in no mood to hang around, breaking in the first game of the third set by racing to return a De Minaur drop shot and going a double break up in a flash.

De Minaur had no answer to the brilliance of Djokovic and although he was able to get on the board at 4-1, he was heading for the exit after sending a vicious serve high and wide.

Djokovic closing in on Agassi record

This was Djokovic's best performance of the tournament as he ominously marched into his 13th Australian Open quarter-final and the last eight of a major for the 54th time. 

Djokovic has 25 Australian Open wins in a row, the joint-second longest run and one behind Andre Agassi's record streak of 26, and was also his 86th main draw win at the Australian Open, his joint-highest tally in a single ATP-level tournament (level with Wimbledon).

WINNERS/UNFORCED ERRORS

Djokovic – 26/27
De Minaur – 9/28

ACES/DOUBLE FAULTS

Djokovic – 4/3
De Minaur – 3/2

BREAK POINTS WON

Djokovic – 6/12
De Minaur – 0/0

Andy Murray and Novak Djokovic have called for changes to the Australian Open schedule after several late finishes in Melbourne.

Three-time grand slam champion Murray bowed out of the season's opening major on Saturday following a four-set defeat by Roberto Bautista Agut in round three.

The 35-year-old arrived in the clash having already spent over 10 hours on court across his victories over Matteo Berrettini and Thanasi Kokkinakis.

Murray's 4:05am local time finish in the latter match was the third-latest in tennis history after he recovered from two sets down to deny the home favourite in a thrilling clash that took five hours and 45 minutes to settle.

The Briton subsequently voiced his concerns with scheduling, which tournament director Craig Tiley has no plans to change.

He reiterated those worries after defeat by number 24 seed Bautista Agut, suggesting the Australian Open could follow the trend set by another of the sport's major events.

"I'm sure if you went and spoke to some sleep experts and sports scientists – the people that actually really know what's important for athletes to recover – they would tell you that sleep is the number one thing, that that's the most important thing," he said.

"Finishing matches at four in the morning isn't good for the players. I would also argue it's not good for the sport, anyone involved in it. I do think there's some quite simple things that can be done to change that.

"I think the US Open went to playing two matches in the day session. That would stop the day matches running into the night session starting too late.

"I think that's quite a simple one that you could look at. You'd still get quality matches during the day. The people who bought ground passes would get to see more of the top players, which would be excellent for them.

"I think if you did that, you could also potentially bring the night sessions slightly earlier, as well, like 6:00 or 6:30. That time, those few hours, can make a difference to the players."

Nine-time Melbourne champion Djokovic, who overcame injury to defeat Grigor Dimitrov in straight sets, concurred with Murray.

"I think that players' input is always important for tournament organisation. Whether it's decisive, we know that it's not, because it comes down to what the TV broadcasters want to have," Djokovic said. "That's the ultimate decision maker.

"I would agree with [Murray's] points. I think we have days when the day sessions go longer, but probably more days statistically in average where they finish – say five, six max – and you can start the night session an hour earlier at least.

"For the crowd, it's entertaining, it's exciting. For us, it's really gruelling. Even if you go through and win, prevail in these matches, you still have to come back.

"You have your sleeping cycle, rhythm disrupted completely, not enough time really to recover for another five-setter. Something needs to be addressed in terms of the schedule after what we've seen this year."

Novak Djokovic recognised his ongoing hamstring troubles are "not ideal" but said in "high-level professional tennis you have got to find a way".

The Serbian beat number 27 seed Grigor Dimitrov in straight sets in the third round of the Australian Open on Saturday, despite clearly feeling the hamstring injury that hampered him in his second-round match.

Djokovic was particularly struggling in the first set, though was able to win a tense tie-break 9-7, before going on to win the second and third sets 6-3 6-4 in a match that lasted over three hours.

"I went up and down with my leg, at times it was feeling good and at times not so good, so I had to handle that," Djokovic told Eurosport after the victory.

"Also Grigor is in form, played well for over three hours and three sets, I can't even imagine if I'd lost one of those sets what the length of the match [would have been].

"[I was] just fortunate to find the right shots in the right moments, I thought the double break in the third would be enough but from that moment he was locked in, he didn't miss much, he made me play, made me run all over the place, he read my serves very well, so it was just an incredible battle in the end."

Djokovic received a medical timeout at the end of the first set, which seemed to do the trick as he looked more comfortable in the second, and he broke twice early in the third before a brief Dimitrov fightback, which was ultimately in vain.

"It's movement," he clarified about the injury. "A specific movement that just triggers so I prayed that it doesn't happen, but it happened in the match so I had to deal with it, I had to call the physio and get the pills in my system and it helps so far.

"Not ideal but somehow finding a way. This is high-level professional tennis and you've got to find a way."

The fourth seed faces Australian Alex de Minaur in the fourth round.

Novak Djokovic is through to the fourth round at the Australian Open after beating Grigor Dimitrov in straight sets, but he was made to work for it.

The number four seed was troubled by the hamstring injury carried over from his second-round win against Enzo Couacaud in the first set before winning it on a tie-break.

Djokovic seemed back to normal as he won the second set, but exchanged several breaks of serve with Dimitrov before finally sealing a 7-6 (9-7) 6-3 6-4 win.

The Serbian broke in the first game, but Dimitrov showed admirable grit not to drop serve again, saving set points at 5-3 down before breaking back as Djokovic served for the set.

Despite being visibly hampered by his hamstring, Djokovic saved three set points himself, one of which came in the tense tie-break, before prevailing, the effort it took seeing him briefly collapse to the floor after executing a cross-court volley to seal an opener that lasted 77 minutes.

A medical timeout before second set seemed to make a difference as he continued to trouble the Bulgarian's serve, eventually breaking in the sixth game and going on to take a two-set lead.

Djokovic broke in the first and third games of the third set as Dimitrov began to realise the Serbian's injury issues were not going to be a factor, and although he won a break back, he gave it away to love in the very next game.

The determined 27th seed broke back again before finally holding his serve, but when Djokovic managed to reach his first match point after another long rally, the pair waved to the crowd for noise as they cheered the efforts of both competitors, with Djokovic finishing it off at the first attempt to book a last-16 clash with home hope Alex de Minaur.

Data slam – Unforced errors cost Dimitrov 

There were some impressive rallies throughout the contest, but while the aggressive approach from Dimitrov brought 53 winners, it also led to 50 unforced errors, several of which were on key points.

WINNERS/UNFORCED ERRORS

Dimitrov – 53/50
Djokovic – 28/22

ACES/DOUBLE FAULTS

Dimitrov – 15/4
Djokovic – 11/2

BREAK POINTS WON

Dimitrov – 3/8
Djokovic – 5/12