Follow live text and radio commentary as Alex de Minaur plays Alex Michelsen in the Australian Open fourth round.

The most interesting match on Monday 20 January at the 2025 Australian Open is certainly the one between Jannik Sinner and Holger Rune. These two players have always played very spectacular and balanced matches against each other, with the h2h balance in perfect parity at 2-2.

This was de Minaur’s fourth consecutive trip to the round-of-16 in Melbourne, including straight-sets defeats from Sinner (2022) and Novak Djokovic (2023) before the heartbreak of losing to Andrey Rublev last year from two-sets-to-one up.

Jannik Sinner was suffering from heat and other problems during his fourth-round match at the 2025 Australian Open against 13th seed Holger Rune. He even took an 11-minute medical timeout following which he finished the match in his favor with a scoreline of 6-3,

After telling fans on the weekend his "legs are back", Alex de Minaur proved it on his way to the Australian Open quarterfinals.

Rune, a 21-year-old from Denmark, was trying to get to the quarterfinals in Melbourne for the first time. Sinner will face No. 8 Alex de Minaur of Australia or unseeded Alex Michelsen of the U.S ...

MELBOURNE – First came the medical timeouts, one each for Jannik Sinner and Holger Rune with the temperature ... Sinner will face No. 8 Alex de Minaur of Australia or unseeded Alex Michelsen ...

Australian Open latest score and updates from blockbuster quarter-final - Sinner looks to book his place in the semi-finals when he faces Australia’s De Minaur

It's the biggest match of Alex de Minaur's career - an Australian Open quarter-final against reigning champion and world No. 1 Jannik Sinner.De Minaur has never been to the last four in a major and will have to overcome an 0-9 head-to-head record against the Italian champion.

Meanwhile an all-Aussie mixed doubles final is locked in, with two wildcard teams to face off after Olivia Gadecki and John Peers beat the Kiwi No.2 seeds, before Kim Birrell and John-Patrick Smith defeated two Brits in straight sets.

Follow Mail Sport's live blog for the latest score and game-by-game updates from the Australian Open as Alex de Minaur, Jannik Sinner and Iga Swiatek are all in quarter-final action.