Aryna Sabalenka has her sights on a second straight Australian Open title after a successful revenge mission against Coco Gauff.

Gauff denied Sabalenka a second grand slam title of the year with victory in the US Open final last summer but her winning run at the majors came to an end with a 7-6 (2) 6-4 defeat under the roof on Rod Laver Arena.

Sabalenka will now be a big favourite to successfully defend her title at Melbourne Park on Saturday when she takes on first-time slam finalist Zheng Qinwen, who defeated Dayana Yastremska 6-4 6-4.

Sabalenka has been in tremendous form this fortnight, not losing more than three games in any set prior to this semi-final meeting.

Gauff’s stellar powers of defence, which turned the tables in New York after she had lost the first set, ensured she got significantly closer than any of Sabalenka’s previous opponents, but it was still not enough.

“It was (an) incredible match,” said the second seed. “She’s a great player, always tough battles against her. I think the key was that I was able to stay focused no matter what. I just kept trying my best, kept fighting for it.

“Of course I’m super happy to be in another final of the grand slam. Hopefully I can do a little bit better than the last time.”

Gauff made a poor start, with five double faults in her first three service games helping Sabalenka open up a 5-2 lead.

But Gauff’s ability to get one more ball back in play better than anyone else in the women’s game had put Sabalenka into meltdown mode in New York and she threatened the same here.

Sabalenka failed to serve out the set at 5-3 and Gauff saved a set point in the next game before making it four games in a row, the crowd gasping as the Belarusian pushed a forehand wide with the whole court at her mercy.

Gauff was two points away from taking the set but Sabalenka refused to let history repeat itself and forced a tie-break, where she put on a display of awesome power that even the athletic American could find no answer to.

The second was nip and tuck but Sabalenka got the crucial break at 4-4 and served out the victory to become the first woman since Serena Williams in 2016 and 2017 to reach successive finals here.

Gauff looked emotional leaving the court but she rated her performance as better than in the US Open final, saying: “I felt like it wasn’t a great match for me. Yes, I won. I think I played better tonight.

“I wish I could have made more first serves. I think that was the difference. She had a higher first-serve percentage, and it’s tough to also go for the second when you double-faulted a couple times.

“I put myself in the position to serve out the set. At the end of the day, it came down to a couple of points. Same in the second.”

The 19-year-old immediately found perspective at the end of her final slam as a teenager, saying: “I watched these matches growing up, watching Serena (Williams) and (Maria) Sharapova lose these matches.

“When you’re in it, it feels like the end of the world. But then, when you look at history, they didn’t let one match define their career.

“I’m going to dwell on it tonight but, as (coach) Brad (Gilbert) told me as soon as the match was over, the sun is going to rise tomorrow and you have a new chance to live a good day. Tomorrow I’m going to try to go to the movies or something, be proud of myself.”

Twelfth seed Zheng has kept her head while the more fancied players in the top half of the draw have fallen around her.

Yastremska was trying to emulate Emma Raducanu by reaching a grand slam final as a qualifier but she came out second best in a big-hitting encounter.

Zheng, who has not yet faced a top-50 opponent, is the first Chinese player to make it to a slam decider since Li Na won the title here a decade ago.

The 21-year-old said: “It feels unbelievable. I’m super excited to have a such a great performance today and arrive in the final.”

Dayana Yastremska is two wins away from emulating Emma Raducanu after beating Linda Noskova to reach the Australian Open semi-finals.

Raducanu is the only qualifier ever to win a grand slam title but Yastremska increased her tally of wins in Melbourne to eight with a 6-3 6-4 victory on Rod Laver Arena.

The stories are not exactly comparable, given Yastremska was ranked 21 in the world as a 19-year-old before serving a six-month provisional suspension for a failed doping test, for which she was later deemed to bear no fault.

But it is nevertheless a very impressive run from the Ukrainian, now 23, who is set to soar back into the top 30 from her current ranking of 93.

She is the second qualifier in the open era to reach the last four here in the women’s singles after Australian Christine Dorey in 1978.

Yastremska said: “I think it’s nice to make history because at that time I still wasn’t born. I’m super happy, and tired. I arrived here on January 3. On the days when I have a match, they do go very fast. When I have a day off, it feels like I’ve been here for six months already.”

This was a contest of first-strike tennis, with both women looking to seize the initiative in rallies as early as possible.

But it was the extra power of Yastremska that made the difference, with the Ukrainian hitting 19 winners compared to only six for 19-year-old Noskova.

“I don’t really feel like I’m playing really good,” said Yastremska, who has beaten Wimbledon champion Marketa Vondrousova and two-time winner Victoria Azarenka during her run.

“I just try to play like I can and take the maximum from myself. Everything I have left is just fighting.”

Novak Djokovic fought off a strong challenge from Taylor Fritz to reach the Australian Open semi-finals for the 11th time.

The world number one has never lost in Melbourne once he has made it beyond the last eight, and there is no doubt how much he wants a 25th grand-slam title.

Djokovic had beaten American Fritz in all eight of their previous meetings but this was certainly not straightforward, with the top seed finally securing a 7-6 (3) 4-6 6-2 6-3 victory after three hours and 45 minutes.

The first game alone lasted 16 minutes and the first set 84 minutes as they toiled in the heat on Rod Laver Arena.

Fritz, looking to reach a slam semi-final for the first time at the third attempt, remarkably saved all 15 break points he faced in the opening two sets, and he impressively levelled the contest.

It was just the third set he had won against the Serbian, with the other two both coming in a third-round clash here in 2021, when Djokovic suffered an abdominal injury but still managed to win in five.

But Djokovic began to turn the screw in the third set as Fritz started to feel his left foot, and successive breaks in the fourth set him on the way to a record-extending 48th slam semi-final.

Speaking to Nick Kyrgios on court, Djokovic said: “I suffered a lot in the first couple of sets. Also due to his high quality tennis. He was really kind of suffocating me from the back of the court.

“It was really difficult to find the right timing, it was really hot while the sun was still out. We all know Taylor has got one of the best serves in the world. I knew the kind of a threat he poses when he serves on such a high quality.

“Conversion of the break points was really poor but I managed to break him when it mattered. I think I upped my game midway through the third set all the way through to the end.”

Emma Raducanu’s exhibition match ahead of her return to grand slam action at the Australian Open has been cancelled.

The 21-year-old Briton had initially been due to play her fellow former US Open champion Naomi Osaka in a charity match inside Rod Laver Arena as part of her preparations for the first major of the year.

Japan’s Osaka, who herself recently returned to action for the first time since giving birth to daughter Shai last summer, then withdrew from the match and was replaced by world number 25 Donna Vekic.

Australian Open officials later announced the match was off, with Raducanu reported to have pulled out due to feeling “sore” following practice on Monday.

The former British number one is due to make her comeback at a major tournament in Melbourne after being sidelined for eight months following wrist and ankle operations.

Raducanu, who won at Flushing Meadows in 2021, reached the second round of the ASB Classic in Auckland last week before losing to Elina Svitolina.