BBC Radio 5 Live Sports Extra

We are going to leave things there from a live text perspective, but don't go anywhere, because an intriguing men's quarter-final between Gael Monfils and Matteo Berrettini is coming right up and will be live on BBC Radio 5 Live Sports Extra - you can listen via this page.

Image source, Getty Images

Meanwhile, Britain's Alfie Hewett will contest both the wheelchair singles and doubles finals at the Australian Open, having won his singles semi-final earlier, and says he feels like a "totally new person".

The 24-year-old beat France's Stephane Houdet 6-1 6-1 to reach the singles final, and on Wednesday will partner Gordon Reid in the doubles final.

Hewett found out in November that he would be able to continue his career after passing an impairment assessment.

"To be honest with you, I'm a totally new person," Hewett told BBC Sport.

"I feel like a massive weight has been taken off my shoulders. Everyone around me has noticed just how free I am with it all - relaxed. When I'm on the tennis court I'm enjoying myself much more.

"Sitting here in Australia, I've enjoyed my trip so much more than maybe what I was doing last year and it's reflected in my tennis. I feel I am stronger mentally for it and I'm also enjoying the occasion."

So Ash Barty will face Madison Keys, who reached her first Grand Slam semi-final for four years with an impressive victory over Barbora Krejcikova.

The American continued her strong start to the season with a 6-3 6-2 win over the French Open champion Krejcikova.

The 26-year-old is now on a 10-match unbeaten streak to start the year, having won just 11 matches across the whole of the 2021 season.

"I think I'm going to cry. It means a lot," Keys said on court. "I'm really proud of myself and so thankful to my team and my friends and my family for helping me through what was a really tough year."

Image source, Getty Images

Elsewhere, Nick Kyrgios and Thanasi Kokkinakis thrilled another packed home crowd as they reached the Australian Open men's doubles semi-finals.

The duo - who have been nicknamed the Special Ks - beat sixth seeds Tim Puetz and Michael Venus 7-5 3-6 6-3.

Kyrgios gave a racquet to a young boy in the crowd after accidentally hitting him when he swiped away a ball.

"As long as I'm playing this sport and playing in Australia, you sure will have a show," Kyrgios said. "Unreal scenes. I'm not finished. I want to win this thing."

Kokkinakis added: "When we walk through that tunnel, there's no feeling like it - we don't want anything else. This is perfect - the rowdier the better. Keep rustling some feathers, guys."

Here is Ash Barty after that clinical performance: "That was solid, I had a lot of fun, I was able to serve and find a lot of forehands in the centre of the court - I was happy to take the game on, be aggressive on my foehand, not wory if I miss a couple.

"Jess is an incredible person, she is a brilliant girl and I love to test myself against her. She has had an exceptional couple of years and deserves to be in these later end of Slams. She has a few more to come, for sure.

"I have grown as a person, as a player, I am more complete tennis player, have a couple of years' more experience - it is a credit to my team. They have done so much work behind the scenes to make me the best version of myself. It has been a lot of fun so far.

"It's been amazing, this isn't Melbourne, this is Brisbane weather! Plenty of heat throughout the day. Night sessions are special. I love playing at the Australian Open, it doesn't matter what time."

On facing Madison Keys in the semi-final: "It is so nice to have Maddy back playing her best tennis. She had a rough trot last year with injury and illness, but she is one of the most incredible girls in the locker room. I have had plenty of battles with Maddy before, this is just going to add to it."

Just an hour and three minutes on court for Ash Barty. She's looking dominant.

Oooh, the first drops long! Two match points to go...

A racquet-rattling serve from Ash Barty and that's three match points.

The applause is gradually growing for the home favourite. Ash Barty scuttles around the court to pick off Jessica Pegula in a tactical exchange. 30-0.

Ruthless and unrelenting from Ash Barty!

From 40-0 down, she wins six successive points to break again and is one game away from the semi-finals.

Oh dear. Ash Barty keeps making her opponent work to get one more ball back in, and Jessica Pegula eventually prods wide. Break point.

All of a sudden, from 40-0 up, the American finds herself at deuce.

Jessica Pegula finds some momentum on her way to 40-0 but it's stemmed by a double fault.

And then she throws down a second...

Sensational from Ash Barty, working her opponent across the baseline before unleashing a winning forehand that kisses the tape on its way through. She holds.

A second double fault of the match from Ash Barty and it gives Jessica Pegula a sniff. 30-30.

But the American can't take it... coaxing a forehand just wide. She's frustrated by that one.

Ash Barty grinds down her opponent with a series of deep slices and eventually Jessica Pegula cracks. The world number one takes a double break and is in full control.

Just a tad too much on Jessica Pegula's backhand, probably because she is really having to work for every point at the moment.

The American thinks she's got Ash Barty scrambling but Barty hoists one into the air and Pegula smashes long. Break point.

Ash Barty dances around a forehand and lashes it down the line. Superb. She's in the groove now, but doesn't have a chance to blink as Jessica Pegula riffles down a forehand return.

It's a minor blemish as Barty holds to back up that break a moment ago.

What a point!

The American looks to have Ash Barty on the run but she tickles a delightful lob over Jessica Pegula to reverse the momentum and then hammers away a smash at the second attempt.