That brings our live coverage of today's action at the Australian Open to a close.

Thanks for joining us and see you tomorrow for the quarter-finals!

We've got four cracking quarter-finals coming up on Rod Laver Arena tomorrow...

From 12:30:

Coco Gauff [3] v Paula Badosa [11]

Tommy Paul [12] v Alexander Zverev [2]

From 08:00:

Aryna Sabalenka [1] v Anastasia Pavlyuchenkova [27]

Novak Djokovic [7] v Carlos Alcaraz [3]

Image source, Getty Images

Just after Iga Swiatek wrapped up her win, the World Anti-Doping Agency announced it will not appeal against the ban given to the five-time major winner.

Swiatek tested positive for heart medication trimetazidine (TMZ) in an out-of-competition sample in August 2024.

The International Tennis Integrity Agency (ITIA) accepted the test result was caused by contamination and the world number two served a one-month suspension, which ended on 4 December.

Wada said that "following a thorough review, it will not lodge an appeal to the Court of Arbitration for Sport (Cas)" in the 23-year-old's case.

Full story.

Image source, Reuters

Iga Swiatek said she has not reached her "peak" yet after she ruthlessly moved past lucky loser Eva Lys in 59 minutes to reach the quarter-finals.

The five-time major winner dropped just one game as she ended Lys' historic run with a 6-0 6-1 victory on Rod Laver Arena.

It is the first time Swiatek, the second seed, has reached the last eight in Melbourne since 2022.

"I'm still 23 years old, so there is a lot to improve always," Swiatek said.

"I don't feel like I'm in my peak yet but matches like that definitely give me confidence. I feel like I'm playing a good game."

Read more on Swiatek's win and other results from the women's draw.

Image source, Getty Images

Iga Swiatek raced past lucky loser Eva Lys in 59 minutes to set up a quarter-final with eighth seed Emma Navarro, who clinched a narrow 6-4 5-7 7-5 win against Russian Daria Kasatkina.

American 19th seed Madison Keys knocked out 2023 runner-up Elena Rybakina with a 6-3 1-6 6-3 win to reach the quarter-finals.

Keys will face Ukraine's Elina Svitolina, who stormed to a 6-4 6-1 win against Russian Veronika Kudermetova.

In the men's draw, defending champion Jannik Sinner struggled physically before moving past Denmark's Holger Rune.

Italy's Lorenzo Sonego beat American qualifier Learner Tien 6-3 6-2 3-6 6-1 to reach his first Grand Slam quarter-final.

Sonego will play 21st seed Ben Shelton next after the American's fourth-round opponent, Frenchman Gael Monfils, retired while trailing 7-6 (7-3) 6-7 (3-7) 7-6 (7-2) 1-0.

Image source, Getty Images

Ryan Harrison
Former American tennis player on BBC Radio 5 Live and BBC Sounds

Alex de Minaur speaking on court about reaching the Australian Open quarter-finals for the first time: "It means the world. I love you guys too, so much. There is nothing that I want to do more than play well here, in Australia, in front of you guys. I'm glad I finally made it to the quarter-finals here, so let's go for bigger and better things. Come on!"

On whether getting engaged is lifting his performances on court: "I don't believe in coincidences. I think that when you are happy off the court, then you play some good tennis on the court."

On taking the first set 6-0 and pushing back on Alex Michelsen's resistance: "I had my opportunities in the second set to maybe run away with that one as well and not let him inside the match, but I wasn't able to close it out. He obviously raised his level and then it made it a tough match. That second set was pivotal so I'm extremely happy I was able to bounce back after that second set break - it was massive. Let's keep it going."

On what he has been working on to break into the top 10: "My whole career has been day-by-day, it hasn't been overnight. I've had to keep improving every year, in little increments, to get a little bit stronger and bigger. I've been working on getting more free points on my serve and a little bit more confidence. Consistency always pays off in the end."

On facing Jannik Sinner in the quarter-finals: "I did get to watch his match today. It was an interesting one - that's for sure. I'm looking forward to it. It's going to be an incredibly tough match and I'm going to have to do something I haven't done before, but why not start here!"

Alex de Minaur's victory means he has reached the quarter-finals at all four Grand Slams now, but he has never made it past the last-eight.

He leaves the court after writing "no place like home" on one of the cameras.

We will have full post-match quotes from the Aussie shortly.

Ryan Harrison
Former American tennis player on BBC Radio 5 Live and BBC Sounds

Alex Michelsen is certainly relishing the moment.

He is just soaking it all in, playing on Rod Laver Arena for the first time.

He is just showing his best stuff, even though his back is against the wall.

Alex Michelsen skews a high shot into the crowd which is caught by a spectator - something which always brings cheers.

The American comes back to hold as Alex de Minaur fires a backhand into the net.

De Minaur will now serve for the match and a place in the Australian Open quarter-finals.

Ryan Harrison
Former American tennis player on BBC Radio 5 Live and BBC Sounds

Alex Michelsen has just overcooked a few shots that would have been relatively comfortable to put away against any other player.

But that's just the speed of Alex de Minaur, who is just putting that extra pressure on him.

Alex de Minaur whips a lovely forehand winner down the line for advantage with little court to aim for, before holding as Alex Michelsen goes wide.

The Aussie is one game away from his first quarter-final in Melbourne.

Alex Michelsen can hit return winners of his own and he lands one to give himself half a chance at 30-30.

A loose forehand offers Alex de Minaur game point but Michelsen overpowers the Aussie next point to take the game to deuce.

Some deep hitting from Alex Michelsen is too good for Alex de Minaur but he undoes his good work, missing a volley at the net he should have put away.

De Minaur brings up two break points with a fine backhand across court and he makes the most of them with a perfect forehand return winner.

Is that the decisive blow in this match?

Two misses from Alex Michelsen and Alex de Minaur is well on his way to a service hold.

But the American whips back an unreal return from De Minaur's next serve, hitting it so hard that it's broken the strings of his racquet.

That's as good as it's going to get for him as De Minaur reacts quickly to the drop shot and fizzes a pass cross-court.

Alex Michelsen lands a couple of good first serves to go 40-15 ahead.

The 20-year-old American then wraps up the game with an ace.

Alex de Minaur comes through the next game relatively untroubled to hold.

Ryan Harrison
Former American tennis player on BBC Radio 5 Live and BBC Sounds

That is one of the points of the tournament for sure!

Alex Michelsen was fully running away from the net in the opposite direction. He just hits a complete slap-shot off his shoelaces really and he hits the tape with it.

Incredible stuff - and Michelsen is asking for a bit of appreciation from this Australian crowd.

Alex de Minaur returns well and Alex Michelsen can't land a volley in close at the net.

The next point is remarkable as both players scurry up and down the court, before De Minaur goes into the net and Michelsen holds.

The crowd are so into this - perhaps a bit too much in fact, as the umpire warns a spectator about screaming too loud.