Eighteen-year-old Mirra Andreeva beaten 2-6 4-6 by 12th seed Elina Svitolina in fourth round
Home hope Alex de Minaur defeats Alexander Bublik 6-4 6-1 6-1
Sixth seed to face world number one Carlos Alcaraz in last eight
Jakub Mensik withdraws through injury to give Novak Djokovic walkover into quarter-finals
Two-time champion Aryna Sabalenka through to face Iva Jovic, 18, next
Third seeds Coco Gauff and Alexander Zverev also advance
De Minaur 1-0 Bublik*
An early test on Alexander Bublik's serve.
Alex de Minaur produces a backhand pass with the Kazakh at the net to force deuce.
Both players have looked keen to keep points short in the opening couple of games.
Medvedev 4-6 0-1 Tien*
Just as he did in the first set, Learner Tien breaks Daniil Medvedev's serve in the opening game of the second set to take a firm grip on his fourth-round match.
*Zverev 6-2 6-4 4-3 Cerundolo
Alexander Zverev is on the brink of the quarter-finals in Melbourne.
Francisco Cerundolo goes long with a forehand and the German third seed, already two sets ahead, seals an all-important break of serve to move 4-3 up in the third.
De Minaur 1-0 Bublik*
Alex de Minaur opens his account with ace to get the Rod Laver Arena crowd on their feet early.
A comfortable hold to 15 for the Australian.
*denotes next server
*De Minaur 0-0 Bublik
Alexander Bublik won the coin toss and elected to receive.
Alex de Minaur - who lost after leading by two sets against the Kazakh when they met at last year's French Open - will get this fourth-round match under way.
*Medvedev 3-6 0-0 Tien
Image source, EPALearner Tien is only 20 but looks to have a very bright future ahead of him.
He's inside the world's top 30 and a win today would earn him a maiden Grand Slam quarter-final appearance.
The left-hander has just won the first set against former US Open champion Daniil Medvedev, clinching it with a fizzing forehand down the line for a winner.
BBC Radio 5 Sports Extra
Live radio coverage from Melbourne continues on BBC Radio 5 Sports Extra.
Listen live on BBC Sounds or via the link at the top of this page.
De Minaur v Bublik
The players are on court on Rod Laver Arena.
Unsurprisingly, a huge cheer went up as home favourite Alex de Minaur walked out.
The winner of this match will face world number one Carlos Alcaraz in the quarter-finals.
*Medvedev 3-5 Tien
After gaining an early break of serve, American Learner Tien hasn't come under too much pressure on his own serve as he looks to close out the first set against Daniil Medvedev.
He's taken to deuce for the first time but safely escapes to hold for a 5-3 lead.
De Minaur v Bublik
Image source, Getty ImagesThe weight of a nation is on Alex de Minaur.
It's 50 years since Mark Edmondson won the Australian Open - the last Australian to do so in men's singles - and de Minaur is the last man standing for the hosts.
The sixth seed is a six-time Grand Slam quarter-finalist, reaching the last eight in all four majors, but is yet to progress beyond that stage.
However, he believes he has the ability to be a serious contender at the business end of tournaments.
"I've got to the stage where I'm not just another number in the draw," he said following his first-round win. "I'm playing to win it, to be one of the guys in contention. Ultimately, that's the goal."
De Minaur v Bublik
Image source, Getty ImagesComing into 2026, Alexander Bublik had won just three matches in seven main-draw appearances in Melbourne.
But the Kazakh 10th seed heads into his fourth round meeting with Alex de Minaur in red-hot form having not dropped a set in his opening three matches.
Bublik is making just his fourth appearance in the second week of a Grand Slam and has only once reached the quarter-finals at a major, doing so at the 2025 French Open where he overturned a two-set deficit to beat De Minaur in the second round...
*Zverev 6-2 6-4 1-2 Cerundolo
An absolute dream of a volley at the net on deuce helps Francisco Cerundolo keep the third set against Alexander Zverev on serve.
The Argentine's supporters have found their voices again.
De Minaur v Bublik
Image source, Getty ImagesThere will likely be a lively crowd on Rod Laver Arena as sixth seed - and home favourite - Alex de Minaur takes on Alexander Bublik.
De Minaur is Australia's best hope of a singles title at this year's event and he's only lost one set en route to the last 16.
However, his fourth-round opponent, the enigmatic Alexander Bublik, is in arguably career-best form and came from behind to win both of their meetings in 2025.
The winner will face top seed Carlos Alcaraz in the quarter-finals after the Spaniard beat Tommy Paul in straight sets.
An intriguing contest ahead...
Medvedev 1-3 Tien*
Play has resumed after a delay of about seven minutes because Learner Tien appeared to have a nosebleed during the change of ends.
He's held serve for a 3-1 lead over Daniil Medvedev.
BBC Sounds
The BBC Sport team in Melbourne will round up every day's play at the Australian Open in a daily podcast.
Saturday's episode focused on Jannik Sinner's third-round victory and struggles with the extreme heat as well as Naomi Osaka's withdrawal because of injury.
Zverev 6-2 6-4 0-0 Cerundolo*
No problems for Alexander Zverev as the third seed serves out the second set at the second time of asking.
The German has a two-set lead on John Cain Arena and is closing in on reaching the last eight for the fifth time in 11 Australian Open apperances.
Image source, Getty ImagesMany of the top seeds progressed into the fourth round on a scorching-hot day in Melbourne, when the temperature neared 40C.
Two-time defending champion Jannik Sinner admitted he was a little fortunate at the timing of the heat rules being enforced during his match with Eliot Spizzirri. The Italian was struggling really badly with cramp and trailing by a break of serve in the third set when the intervention came, after which he completed victory under the roof on Rod Laver Arena.
Novak Djokovic went through in straight sets, while 40-year-old Stan Wawrinka's dream run in his final appearance at the Australian Open was ended by ninth seed Taylor Fritz.
In the women's draw, Jessica Pegula, Amanda Anisimova and defending champion Madison Keys all won in straight sets but two-time former winner Naomi Osaka withdrew because of injury.
While there are no British players remaining in the singles, several are going strong in the men's doubles.
Neal Skupski and his American partner Christian Harrison were leading 5-0 against Dutch duo Botic van de Zandschulp and Tallon Griekspoor before receiving a walkover win.
The sixth seeds could face a Briton in the quarter-finals with Henry Patten and Finland's Harri Heliovaara - the second seeds - in action against Czech pair Petr Nouza and Patrik Rikl later on Sunday.
Unseeded Luke Johnson and Jan Zielinski (Poland) beat John-Patrick Smith and Adam Pavlasek in straight sets to advance to the last eight.
However, Marcus Willis and Jakub Paul's run came to an end in the second round late on day seven. They lost to Australian wildcards Marc Polmans and Jason Kubler in three sets.
Gauff 6-1 3-6 6-3 Muchova
Annabel Croft
Former British number one on BBC Radio 5 Sports Extra
Coco Gauff's greatest asset on court is her attitude and her ability to keep digging, scrapping and fighting no matter which way she can get herself over the line, she does.
Sometimes the tennis isn't always pretty and it's a bit shaky and we can feel what she's going through emotionally, but she comes through so many matches like this time and time again.
You have to really admire her strength and character.
Image source, Getty ImagesGauff 6-1 3-6 6-3 Muchova
Image source, ReutersElite-level tennis is saturated with stats these days, but how about this one...
Coco Gauff has now beaten Karolina Muchova five times - on the previous four occasions the American has gone on to win the title.
