Ravi Ubha

After Medvedev's mishit return winner last year deep into the 4th set TB, Zverev sees that net cord winner go against him against Sinner deep into this TB.

Zverev has produced first serves on all 8 BP faced. The lone one that wasn't into a corner was the one where he was broken on.

Keys becomes the latest at the AO to save a MP en route to the title (Osaka, Wozniacki, Kerber etc). When she hit that CC backhand overhead that caught the line while down 0-15 midway in the third...

By winning that set, Sabalenka keeps this up: The last time she lost in straight sets at a hard court Slam was at the 2020 US Open (Azarenka).

Sinner now 6-1 v Shelton in 7-6 or 7-5 sets. Won the last six.

High praise from Keys' coach, Fratangelo, for Sabalenka (Pavlyuchenkova match): '...there just wasn't a doubt in my mind that she wasn't going to win that match. That's kind of how you feel with Novak when he plays most matches, Serena when she played most matches, Roger, Rafa..'

Djokovic v Zverev at the Australian Open on Friday: Winners of the last 4 Olympic gold medals in singles (men) will be at court level.

With that win, Keys has now completed her set. She's beaten players ranked 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10. She was just missing '2'. And, of her more than 30 Top 10 wins, this was her 4th after losing the first set.

Not sure what she would say, but it seems like Keys is defending better than ever (with both the FH and BH slice) when needed. Or is it that Keys is using those shots instead of trying to hit big from difficult spots on the court?

What drama! Tears from Keys.

Still a lot of tennis to be played at the Australian Open, but Djokovic and Badosa could, mathematically, win the singles titles and beat each of the top three in the rankings.

Rallies 5+ in the third set: Djokovic 19 points won, Alcaraz 11.

2nd point of that game seemed to impact Djokovic. Some grimaces after.

At 11, it's the fewest games dropped by Iga through four rounds at a major (excluding retirements).

Moutet told L'Equipe he was very impressed with Tien & stayed up to watch his match v Medvedev. He also said that before the match v Tien, he fainted in the shower. Still played.

Rune-Kecmanovic, incredible. Tip of the cap to both.

Monfils' first Top 10 win at a major since the 2014 US Open (Dimitrov). And overall, 8 wins in a row -- after trailing Martinez 6-1, 5-2 in Auckland.