Aryna Sabalenka vowed to have many more battles with the impressive Elena Rybakina after securing her first grand slam title at the Australian Open.

Belarusian Sabalenka was far from her best in the first set on Rod Laver Arena but made amends for her errant serving with a heavy-hitting showing to down Rybakina 4-6 6-3 6-4 on Saturday.

Victory over the 23-year-old marked Sabalenka's 11th straight win to start the 2023 season, dropping to her knees to celebrate after falling just short in previously reaching three major semi-finals.

World number five Sabalenka heaped praise on Rybakina, who had looked on course to back up her 2022 Wimbledon triumph, as she reflected on a maiden grand slam success.

"First of all, I want to say sorry for my English as I am still shaking and am super nervous," she said on court after her triumph.

"Secondly, it's such an inspiration to receive this trophy from you [Billie Jean King]. Thank you so much for everything you've done for our sport. I couldn't be more thankful.

"I want to congratulate Elena for an incredible two weeks. You are such a great player.

"I hope we have many more battles and hopefully [they will be] in the finals of grand slams.

"Congratulations to your team. You guys are amazing and have done such a good job.

"It was an amazing atmosphere. I hope next year I come back even stronger and I will show you all [the Australian fans] even better tennis."

Addressing her own team, Sabalenka added: "We've been through a lot of downs last year.

"We worked so hard and you guys deserve this trophy. This is more about you than about me. Thank you so much for everything you do for me. I love you guys."

Rybakina, the 22nd seed in Melbourne, defeated major champions Iga Swiatek, Jelena Ostapenko and Victoria Azarenka en route to the final amid a scintillating run in Australia.

But she slipped to a fourth straight defeat in head-to-head clashes with Sabalenka.

"I would like to congratulate Aryna on the title and a great start to the season. I know how hard you and your team have worked for that," Rybakina said.

"Good luck for the rest of the season and hopefully we are going to have many more battles.

"I want to say a big thank you to my team for the great job we have done; to my family, coach and president of the Kazakhstan Federation, thank you so much for the support.

"I had goosebumps with this atmosphere and I am looking forward to coming back next year. Next year I hope to go one better."

Aryna Sabalenka claimed her first grand slam title after fighting back to down Elena Rybakina at the Australian Open on Saturday.

Sabalenka has won all 11 of her matches in 2023 after battling to a thrilling 4-6 6-3 6-4 victory over the Wimbledon champion.

Dropping the opener against Rybakina was the first time Sabalenka had lost a set this year.

After moving in front, Rybakina seemed on course to back up last year's major success with a hard-court victory in Melbourne, but fifth seed Sabalenka regained composure after a nervy start to win a gripping encounter.

Both players were impacted by the wind in the early stages with the roof open at the Rod Laver Arena, though Rybakina adapted the quicker to break and go 2-1 up as Sabalenka skewed a forehand wide.

Despite the Belarusian levelling at 4-4 with a powerful backhand, Sabalenka's errant serving proved costly as five double faults allowed Rybakina move ahead and serve out to take the lead.

The match sprung to life as Sabalenka's serve clicked into gear. Rybakina saved two set points but had no answer on the third as an emphatic ace ensured a decider would be required.

World number 25 Rybakina was then overpowered by Sabalenka's heavy-hitting forehand and, despite saving three break points prior, the latter snatched a vital opportunity to go 4-3 up and then move a game away from glory.

That break ultimately proved the difference but Sabalenka had to hold her nerve, with Rybakina making her serve it out.

Despite a double fault on her first championship point and then being unable to convert her next two, Sabalenka claimed the title on her fourth match point as her opponent's forehand went long, with the relief and emotion pouring out as she dropped to the ground.

Data slam: Sabalenka rewarded for grand slam consistency

Sabalenka became the 58th different female player in the Open Era to secure a grand slam title after overcoming the 57th major champion Rybakina, who lifted the Wimbledon trophy in 2022.

In the last two seasons, only Iga Swiatek (24) and Jessica Pegula (18) have won more grand slam main-draw matches than Sabalenka (17) as the 24-year-old tasted her first major success, having made it as far as the semi-finals in three previous majors.

Novak Djokovic insists his father did not intend to pose for pictures with supporters of Vladimir Putin and is hoping he will be able to attend Sunday's Australian Open final.

Srdjan Djokovic was not present at Rod Laver Arena for his son's 7-5 6-1 6-2 win over Tommy Paul on Friday, which set up a final against Stefanos Tsitsipas.

The 62-year-old announced in a statement ahead of the match that he was staying away to avoid creating any "disruption for my son or for the other player".

It comes on the back of Srdjan being pictured standing next to a Russian flag with Putin's face on it, and a man whose t-shirt indicated support for Russia's invasion of Ukraine.

But Novak, who is chasing a 10th grand slam title in Australia and a record-equalling 22nd men's singles major overall, believes the situation has been taken out of context.

"There was no intention," Djokovic said after beating Paul. "You're basically asking me a question like he did it intentionally, like he's not being careful about what he's doing. 

"It can happen to many people what happened to him. He was passing through, made a photo, it has escalated. He was misused in this situation by this group of people. 

"That's what happened. I can't be angry with him or upset because I can say it was not his fault. He went out to celebrate with my fans, and that's it. That's all that happened. 

"After that, of course he felt bad because of me and he knew how that's going to reflect on me, the whole media pressure and everything that's happened in the last 48 hours.

"But it is what it is. You accept it and you move on."

Elaborating on the incident, he said: "The photo that he made, he was passing through. I heard what he said in the video. He said 'cheers'. 

"Unfortunately some of the media has interpreted that in a really wrong way. I'm sorry that that has escalated so much. 

"But I hope people understand that there was absolutely no intention whatsoever to support any kind of war initiatives or anything like that.

"There was a lot of Serbian flags around. That's what he thought. He thought he was making photo with somebody from Serbia. That's it. He moved on."

Asked if he expects his father to be back in the stadium for Sunday's final, Djokovic said: "Let's see. It wasn't pleasant not to have him in the box today. 

"It's a decision that we made together. We just didn't know how things would play out, I guess.

"But yeah, I hope to have him [there for the final]. I hope he's going to be feeling okay to be in the courts because I would like to have him there for the final."

Djokovic argued with the umpire and appeared to completely lose focus as he let a 5-1 lead slip in the opening set, but he responded well en route to a straight-sets victory.

And the Serbian, who has still never lost either a semi-final or a final at the first major of the season, admitted the controversy surrounding his father impacted his performance.

"I saw, as everybody else saw, what happened yesterday," he said. "It was unfortunate that the misinterpretation of what happened yesterday has escalated to such a high level. 

"There was, I would say, a lot of conversations with tournament director, with media and everyone else. It has got to me, of course, as well. I was not aware of it until last night. 

"My father, my whole family, and myself, have been through several wars during the 90s. As my father said, we are against the war, we never will support any violence or any war. 

"We know how devastating that is for the family, for people in any country that is going through the war."

Novak Djokovic said even his vivid imagination could not have dreamt up playing a 10th Australian Open final 15 years after winning his first at Melbourne Park.

The Serbian great has the chance to win a record-equalling 22nd grand slam for a male player after hammering Tommy Paul 7-5 6-1 6-2 – a scoreline that would have been even more commanding had Djokovic not endured a first-set blip from 5-1 up.

Djokovic is already a nine-time singles champion in Melbourne, with his first triumph coming back in 2008, and only Stefanos Tsitsipas stands in his way of a 10th.

"I have a pretty vivid and strong imagination, but even I don't think I imagined it would turn out this way," he said during his on-court interview on Rod Laver Arena.

"Super blessed and grateful, I'm trying to cherish and marvel in every moment. Without my family, without my team these things wouldn't be possible. 

"You're by yourself, all eyes are on you, you take responsibility, you take credit, but you have to give credit where it's due and that's to the team who live with me day by day in good and bad moments. This is as much their success as it is mine."

Only one other male player has won double-digit titles at a single slam, that being Rafael Nadal at the French Open.

Tsitsipas is a player Djokovic has faced in a major final before, defeating the Greek at the 2021 French Open showpiece in a match where he had to come from sets down.

"I won that match, so my recollections are very positive!" Djokovic added to a laugh.

"I came from two sets to love down, I think it was the first time I came down from two sets down in a slam final. It was his first slam final, a really physical and emotional battle. It always is with Stefanos. 

"I respect him a lot, he's one of the most interesting guys off the court, with his interests and hairstyle. But it's all business on Sunday, let the best player win."

Both players were involved in a slog at the start of the second set and when asked about his energy levels, Djokovic joked: "It's great, it's perfect, it's 110 per cent!"

He then added: "Look, of course you're not as fresh as at the beginning of the tournament that's for sure.

"We put a lot of effort in the off season weeks on our fitness, to be in good enough condition to play best-of-five sets."

Sunday's victor will also ascend to the top of the ATP rankings, something Djokovic concedes does add extra spice.

"Of course it does, winning grand slams and being number one are the two biggest peaks you can climb as a tennis player," he said. "Let's see what happens."

Novak Djokovic will play his 33rd grand slam final on Sunday, extending his men's Open Era record and edging closer to Chris Evert's leading mark across all singles players.

Djokovic beat Tommy Paul at the Australian Open on Friday to advance to a 10th Melbourne final, having won each of the prior nine.

The Serbian has also played nine title matches at the US Open, eight at Wimbledon and six at the French Open.

Even before this latest semi-final success, his tally of 32 major men's singles finals was unmatched in the Open Era.

But the 33rd saw Djokovic match Serena Williams in second place among both male and female players, with only Evert out ahead now on 34.

Djokovic will no doubt back himself to reach and perhaps pass that record before the year is out, with Roger Federer having retired and Rafael Nadal injured again – those two great rivals no longer keeping pace with the 21-time slam champion. A 22nd success on Sunday would equal Nadal's record.

With victory over Paul, Djokovic joined Federer and Nadal as the only male players in the Open Era to reach 10 or more finals at one major.

Federer went to 12 Wimbledon finals, while Nadal has played the title match at Roland Garros on 14 occasions.

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

Stefanos Tsitsipas always felt he had the "ego" to be challenging for grand slams and the world number one ranking after booking his spot in the Australian Open final.

The Greek defeated Karen Khachanov 7-6 (7-2) 6-4 6-7 (6-8) 6-3 on Rod Laver Arena and will now face either nine-time Melbourne champion Novak Djokovic or Tommy Paul in Sunday's showpiece.

It marks Tsitsipas' second run to a slam final after he was beaten by Djokovic at the French Open in 2021, a match in which he surrendered a two-set lead.

Victory would not only see him win a maiden slam but take ownership of the men's world number one ranking, two ambitions Tsitsipas always believed he could achieve.

"I remember watching it on TV saying to myself, 'I want to be there one day myself. I want to recreate that feeling for me'," he said.

"I knew that's a very long journey to get there. There are certain steps you have to take to give yourself the chance to be competing for something like this.

"But I very much believed it. First of all, it's your ego that speaks. You either have it or not. As a kid, I was very confident. 

"Thank God I was good in my country. Starting from that, I knew if I'm able to get out of my country and compete in other countries, European leagues, European tours, I proved myself over and over again that I'm actually good. 

"I did finish as a junior number one. Now I want to do it in the men's side, in the men's professional tennis."

Asked what had changed since losing to Djokovic in the final at Roland Garros almost two years ago, Tsitsipas said: "I'm playing great tennis. I'm enjoying myself. I just see no downside or negativity in what I'm trying to do out there. Even if it doesn't work, I'm very optimistic and positive about any outcome, any opponent that I have to face.

"This is something that has been sort of lacking in my game. I genuinely believe in what I'm able to produce. That is more than enough. I go about this way. I strive for it every single day. It might not go the way I want it to, but I put 110 per cent out there."

Khachanov has enjoyed back-to-back slam semi-finals having also made the last four at last year's US Open.

The 26-year-old retains belief that he can beyond the semis at future slams.

"Maybe in some situations I could do better. It's always like this. Tennis is always, like any other sport, there is no draw unfortunately in our sport. One guy has to win and to go through," he said.

"I would say I did it second time in a row, consecutive semi-finals. I would definitely go with my head high. Again, rest a couple of days, think with my team for next schedule, again to have a team meeting to discuss those particular situations and moments on what we need to work.

"Hopefully I keep believing that I can pass this step next time, if I am in this situation, hopefully. That's it."

Stefanos Tsitsipas will get a chance to play for his first grand slam title after advancing past Karen Khachanov 7-6 (7-2) 6-4 6-7 (6-8) 6-3 in Friday's semi-final.

Tsitsipas was at his aggressive best, compiling a massive 66 winners to go with his 18 aces. It was his highest winner tally of the tournament so far, eclipsing his 48 in five sets against Jannik Sinner, and his 46 in three sets against Quentin Halys.

Despite his high level of play, the first set was closely contested as both players secured a pair of breaks, but Tsitsipas was able to rattle off five consecutive points in the tiebreaker to run away with the opener.

The world number four did not allow Khachanov a single break-point opportunity in a stylish second set, and it was the same story in the third until Khachanov crucially took his one break-point chance as Tsitsipas was serving for the match.

Khachanov showed guts to fight off two match points and take the third in a tiebreaker, but he was just delaying the inevitable as Tsitsipas racked up 17 winners to five and made the fourth set the shortest of the match.

Tsitsipas will face the winner between Novak Djokovic and Tommy Paul in the final, with a chance to become Greece's first grand slam champion at the age of 24.

Data Slam: Tsitsipas conquers his demons down under

It was the fourth time Tsitsipas had reached the final four of the Australian Open, but after failures in 2019, 2021 and 2022, the Greek finally got over the line against his Russian challenger.

ACES/DOUBLE FAULTS

Tsitsipas – 18/5

Khachanov – 10/1

WINNERS/UNFORCED ERRORS

Tsitsipas – 66/34

Khachanov – 46/32

BREAK POINTS WON

Tsitsipas – 5/12

Khachanov – 3/4

Aryna Sabalenka made a giant career breakthrough by reaching the Australian Open final, revealing: "I've dropped my psychologist and appointed myself."

One year on from being near the lowest ebb of her career, struggling to hit a serve into court, Sabalenka is a changed player after working on the biomechanics of her game.

Three times a losing grand slam semi-finalist, she got over that hurdle for the first time by beating Magda Linette 7-6 (7-1) 6-2 in Thursday's second semi-final, setting up a title showdown with Elena Rybakina on Saturday.

Hard work has brought about this change in Sabalenka, who was stacking up double-figure match totals of double faults as a matter of course in the early stages of last season.

There was work with a psychologist in the background, too, but Sabalenka feels that has run its course, and that nobody understands her better than herself.

It is a gamble, but it also seems to be paying off handsomely.

The 24-year-old fifth seed said: "To be honest, I decided to stop working with a psychologist. I realised that nobody other than me will help, you know?

"In the pre-season I spoke to my psychologist saying, 'Listen, I feel like I have to deal with that by myself', because every time I'm hoping that someone will fix my problem, it's not fixing my problem.

"I just have to take this responsibility and I just have to deal with that. I'm not working with a psychologist any more. I'm my psychologist."

The experiment is working just fine so far, with Sabalenka having a perfect run through her first 10 matches of the year, picking up an Adelaide International title and powering through the grand slam rounds in Melbourne.

She has yet to drop a set this season, and now a first grand slam singles title is tantalisingly close.

Wimbledon champion Rybakina stands in her way, with Sabalenka disclosing she mostly ignored the grass-court slam last year after Russian and Belarusian players were banned from competing.

"I didn't watch Wimbledon last year. I was feeling really bad about that, and I didn't watch Wimbledon at all," the Belarusian said.

"A little bit the final just because I was working out in the gym. I saw a little bit. It was great tennis."

Sabalenka, who is not known for hiding her emotions, appears to be on a sturdy keel in Australia and said she kept the celebrations low-key after beating Linette because "there is one more match to go".

She has won all three of her past matches against Rybakina, but they all came before the Kazakhstani became a major champion.

It is Rybakina who carries the experience of winning in a slam final into Sunday's trophy match, which can be seen as an advantage.

The psychologist lurking within Sabalenka has delivered impressive results so far, and the on-court focus she has demonstrated suggests the woman from Minsk is unlikely to lose any mental battle.

"To be honest, I think I'm not going to do something extra," Sabalenka said. "I think it's okay to feel a little bit nervous. It's a big tournament, a big final. If you're going to start trying to do something about that, it's going to become bigger, you know?

"I'll just leave it like that. It's okay to feel nervous. She's playing great tennis, serving well. I just have to be there and have to work for it and put her under pressure. Yeah, that's it."

Elena Rybakina is thrilled her parents will be on hand for Saturday's Australian Open final after they were unable to witness her Wimbledon triumph.

The Moscow-born 23-year-old, now competing for Kazakhstan, achieved a grand slam breakthrough when she overcame Ons Jabeur to triumph at the All England Club last July.

It was a victory that was tinged with sadness, though, with father Andrey and mother Ekaterina not able to obtain visas to travel from Russia to London.

Rybakina broke down in tears in a press conference after her Wimbledon triumph when asked about her absent parents, but they are with her in Melbourne and will be in the stands to watch the title match against Belarusian Aryna Sabalenka.

A 7-6 (7-4) 6-3 win against two-time champion Victoria Azarenka on Thursday carried Rybakina through to the showpiece match.

When she was asked whether being on site makes the occasion more special for her parents, Rybakina said: "For sure it's great for them. I didn't even talk with them yet, but I'm sure they're happy. They don't see me often playing live, so I think this time it's a big result already.

"No matter how I play in the final, I think they're very proud and happy.

"For sure they're nervous. I think every match I play they're nervous, no matter if it's live or they're watching on TV. You can never get used to this. Of course, you're going to be nervous no matter if it's first round or final."

Rybakina has lost her three previous matches against Sabalenka, with each of them following the same pattern. Sabalenka has won the first set every time, dropped the second, and then come back to convincingly take the decider.

They have not played since 2021, however, and Rybakina has become a slam champion since then, while Sabalenka still awaits a breakthrough on that scale.

Given Sabalenka is unbeaten in 10 matches this year and has yet to even drop a set, Rybakina may still have her work cut out at the weekend.

However, Rybakina is the player who sank the title hopes of world number one Iga Swiatek in round four, and she also saw off the dangerous Jelena Ostapenko, a former French Open winner, before toppling Azarenka.

"It was a great challenge for me because for sure they have experience of winning grand slams, so it was nothing new for them," Rybakina said. "For me this time I would say it was a bit easier also compared to Wimbledon when I was playing for the first time in the quarters, semis, final.

"For sure, they're very experienced players. I knew that I have to focus on every point. I think in the end I did real well."

The difference between Rybakina before last year's Wimbledon and the player now in the hunt for a second grand slam is obvious.

She knows there are no limits for her at these tournaments, having gone all the way, whereas Sabalenka has never previously contested a singles slam final.

"Everything was new at Wimbledon. Now I more or less understand what to expect," Rybakina said.

Her parents have a grip on what she can achieve too, and Andrey's suggestion she should have gone to college as a teenager rather than join the professional ranks is something they can now laugh off.

"Well, we didn't talk about this, but I will ask for sure now since you mention it," Rybakina said, when her father's advice was brought up. "For every parent, it's difficult to make any decision because I'm young and of course I want to play. For them, they're worried if I will be injured or something.

"But I think he's happy and he's very proud. I know that from the beginning, they believed in me no matter if I will lose first round or anything as a junior because they saw also potential, how I loved the game. I think they're just proud now."

Aryna Sabalenka reached uncharted territory in her career by fending off Magda Linette to set up an Australian Open final showdown with Elena Rybakina.

Only a year ago, Sabalenka's game was in crisis as she struggled horrendously with serving yips, but now a first grand slam singles title match awaits the Belarusian.

She scored a 7-6 (7-1) 6-2 victory over unseeded Polish player Linette on Rod Laver Arena, recovering from going an early break down in the first set before taking command of the contest.

Trailing 2-0 and 30-all on serve, Sabalenka ripped a brilliant forehand winner on the run and yelled "Come on!", looking to gee herself up. It did the trick as she won the game to gain a foothold, then came from 40-0 behind in Linette's next service game to break back.

Neither player had a further break point before the tie-break, which fifth seed Sabalenka dominated, before racing 4-1 ahead in the second set.

The 24-year-old, facing an opponent six years her senior, gave Linette precious little hope of a comeback. Linette admirably staved off three match points at 5-1 down, holding serve to keeping Sabalenka waiting, but the deepest grand slam run of her career is over.

Now opportunity knocks for Sabalenka in the biggest match of her life at the weekend, her 20th WTA-level singles final, with Wimbledon champion Rybakina standing in her way.

Data slam: Taking a straight line to glory

Sabalenka has won 10 out of 10 matches in 2023 so far, landing a title in Adelaide before embarking on this run in Melbourne. More impressive than that is all the wins have come in straight sets. She had lost three slam singles semi-finals leading up to this Linette clash, but now that hurdle has been cleared.

ACES/DOUBLE FAULTS

Sabalenka – 6/2
Linette – 1/1

WINNERS/UNFORCED ERRORS

Sabalenka – 33/25
Linette – 9/16

BREAK POINTS WON

Sabalenka – 3/7
Linette – 1/4

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."