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 6-4 6-1 6-1 Bublik
A one-sided match on Rod Laver Arena.
Alex de Minaur didn't concede a single break point and only dropped 14 points on serve throughout the whole match.
For Alexander Bublik, by contrast, from 4-4 in the first set, he only won two more games.
He struggled on serve, hitting four double faults and facing 11 break points (losing six) and saw his 23 winners outstripped by 36 unforced errors - 29 of which were groundstrokes.
Image source, EPAMore from Jakub Mensik's on his withdrawal from the Australian Open, meaning Novak Djokovic gets a walkover into the quarter-finals...
"This is a tough one to write. After doing everything we could to keep going, I have to withdraw from the Australian Open due to an abdominal muscle injury that has progressed over the last matches.
"After a long discussions with my team and doctors we decided not to step on court tomorrow.
"Even though I'm disappointed, making the fourth round here for the first time is something I will carry with me for a long time. I felt so much energy from the fans and the atmosphere in Melbourne was truly special."
De Minaur 6-4 6-1 6-1 Bublik
Image source, ReutersThird time lucky indeed and in typical fashion, it's a forehand unforced error from Alexander Bublik which hands him the win.
Alex de Minaur is through to the Australian Open quarter-finals where he will face world number one Carlos Alcaraz for a spot in the last four.
De Minaur 6-4 6-1 5-1 Bublik*
Third time lucky for the Australian?
De Minaur 6-4 6-1 5-1 Bublik*
This time it's Alexander Bublik who misses the opportunity to seal the game with a backhand error.
De Minaur 6-4 6-1 5-1 Bublik*
Alex de Minaur earns another match point but sends a backhand long.
De Minaur 6-4 6-1 5-1 Bublik*
Alexander Bublik saves match point, coming into the net and picking off a cross-court forehand volley winner with Alex de Minaur on the approach.
De Minaur 6-4 6-1 5-1 Bublik*
At 30-all, Alex de Minaur returns a serve down the T onto Alexander Bublik's feet and the Kazakh's spooned reply goes long.
De Minaur 6-4 6-1 5-1 Bublik*
Cute from Alexander Bublik, rushing up on the approach following a brutal down the line backhand and sending a well-placed backhand winner coursing along the net at a wicked angle: 40-30.
However, it's another hold for Alex de Minaur, who is one game away from the quarter-finals.
De Minaur 6-4 6-1 4-1 Bublik*
Alexander Bublik avoids the bagel and Rod Laver Arena shows the Kazakh some appreciation.
That's only the second time he's held serve since the first set and it was a bit of a classic Bublik service game, featuring an ace and a double fault before he hammered home a smashed winner.
Big news on the men's side of the draw.
Czech 16th seed Jakub Mensik has withdrawn from his fourth-round match with Novak Djokovic, which was due to be played tomorrow, through injury.
It means 24-time major winner Djokovic gets a free passage to the quarter-finals.
De Minaur 6-4 6-1 4-0 Bublik*
Alex de Minaur sends down a couple of aces as he holds to love.
In the blink of an eye, Alexander Bublik is serving again.
*De Minaur 6-4 6-1 3-0 Bublik
And there it is. The double break for Alex de Minaur.
Alexander Bublik kept the third game of the third set alive with some entertaining tennis but an under-cooked backhand drop shot leaves de Minaur in cruise control.
De Minaur 6-4 6-1 2-0 Bublik*
Alex de Minaur keeps the pressure on with a forehand winner. Break point.
De Minaur 6-4 6-1 2-0 Bublik*
Where has this tennis been for the past hour?!? Scrambled defence and play at full stretch from both players at the net before Alexander Bublik saves deuce with a cross-court backhand.
De Minaur 6-4 6-1 2-0 Bublik*
Alex de Minaur chases down a drop shot and returns a backhand deep into the court. Alexander Bublik runs back, replies with a tweener, and de Minaur, at the net, buries a backhand volley. Rod Laver Arena rises to its feet. Bublik looks on in disbelief. 0-15.
However, the 10th seed quickly earns the affections of the crowd himself with a pinpoint backhand pass to level the game.
But before too long, he's facing a break point again.
De Minaur 6-4 6-1 2-0 Bublik*
Alex de Minaur lets out a "come on" after dragging Alexander Bublik off court with a forehand and watching his reply fly long. That's the most demonstrative the Australian has been.
Bublik, up at the net, misses a fairly routine forehand for 40-15, shaking his head and muttering as he returns to the baseline.
De Minaur holds to 30. He's yet to face a break point.
*De Minaur 6-4 6-1 1-0 Bublik
Alex de Minaur had three break points. He only needed one.
Alexander Bublik's first serve goes into the net.
His second, down the centre of the service box, is returned to his backhand and he gets on top of de Minaur in the cross-court exchange. But as has happened so often today, when he goes for the forehand winner into an open court, he loses control completely.
*De Minaur 6-4 6-1 0-0 Bublik
Three backhand errors - one unforced, two forced - and Alexander Bublik is facing three break points in the opening game of the third set.
Medvedev 4-6 0-6 3-6 Tien
Learner Tien, speaking on court after reaching his first Grand Slam quarter-final by beating Daniil Medvedev in straight sets:
"It feels amazing and so special to do it, especially here, where it's always so special to come back and play every year. It was a big goal for me this year and I'm super happy.
"Every year since I've been coming here, the crowd support has been amazing. It means the world to me to do it here."
On his quarter-final against Alexander Zverev: "It's going to be a super tough match. I was able to get him the first time we played, and the second time he beat me pretty bad.
"He plays great tennis here, he was the runner-up last year, so it's going to be a challenge but I'm really looking forward to it."
