BARTY V PEGULA Hello there. It's time for the world No 1. Is this the year that Ashleigh Barty goes all the way at her home Slam? She will surely never have a better chance...

We are going to turn our attentions to the final match of the day between Gael Monfils and Matteo Berrettini. Click the link below to follow all the action.

Ashleigh Barty: "That was solid tonight. I had a lot of fun out here. I was able to serve and find a lot of forehands in the centre of the court and I was happy to take the game on, be aggressive on my forehand, not worry if I miss a couple, as long as I’m doing the right things."

No problems serving it out for Barty, who continues to sweep through the draw and is into the semi-finals, where she will face another American, Madison Keys. Barty was not at her very best but didn't need to be against Pegula, who struggled to find her game.

Pegula is looking rather deflated right now, like she knows this match, and her opportunity, has gone. She gets to 40-0 but then throws in two double faults followed by two unforced errors. Barty takes the break point to move a game away from victory.

The finish line is in sight now for Barty. She wins her seventh game in a row as she swats away a forehand winner from behind the baseline.

This has not been a great showing so far from Pegula. She just can't seem to get going. At 30-30 she frames a smash and Barty then slices her way to another break. The world No 1 is in complete control of this match now.

Barty seems back into her stride on serve now as she quickly gets to 30-0. Pegula responds with a winner, only to then watch a winner fly by her on the next point. Barty finishes the game with an ace down the middle.

Pegula desperately needs a hold here. Still, though, she is struggling to find her top gear. Barty sees a break point come and go but some nice slice variation earns her another chance. Pegula saves with a much-needed winner, just her fourth of the match, and then fires down her first ace to save another. But Barty breaks at the fourth time of asking, putting away a smash after an excellent lob.

Pegula looking a little "lost" says Jo Durie on commentary as Barty cruises to a love hold to take the opening set. An impressive service game to finish from Barty but if Pegula can raise her level a bit then there might be a way back into this for her.

Barty has been far from her best in the last few games, but she secures a double break to take charge of the set. Pegula just isn't able to play consistently enough to hurt Barty at the moment and she nets twice in a row to give the game to the world No 1.

Barty rocking a bit, missing her first serves and going way long with a forehand for 15-30. Pegula can't take advantage though, netting a return before Barty finds her range again to close out the game. Barty is not playing her best and the crowd can sense it, it's tense on Rod Laver.

Pegula isn't playing great so far but she's staying in touch and Barty's level has dropped. The world No 1 doesn't look as confident as she did at the start of the match and she has hit 14 unforced errors.

Two aces in the first three points of the game for Barty, who is serving very well. Pegula stays in touch and then Barty goes for a big second serve and misses, giving the American an opening at deuce. Barty slams the door with a huge forehand-drive volley combo but a couple of unforced errors give Pegula a break point. She snatches at the chance on a second serve and Barty eventually closes out the game.

Pegula gets ahead on her serve again and this time she holds as Barty fires a return long. The American isn't winning many of the longer rallies so far.

Barty's serve is firing out of the gate as she holds comfortably. Perfect start for the Australian.

Solid start from Pegula as she gets 40-0 ahead. However, she then gets beaten at the net before Barty comes in on a good slice and wins the point. A missed volley from Pegula makes it deuce, and Barty then cranks up the spin to earn break point. Barty nets but gets another chance and this time she breaks.

Players are ready. Pegula to serve first.

If you're just joining us, Rafael Nadal is into the men's semi-finals after winning a classic against Denis Shapovalov. Nadal said afterwards that he was "completely destroyed" by the match.

Here we go...

It's been a long, long time since an Australian won in Melbourne. Chris O'Neill was the last player to do it way back in 1978. Barty has made the quarters twice and the semis once in the last three years. The winner of this quarter-final faces Madison Keys after she shocked fourth seed Barbora Krejcikova in straight sets.