Alex de Minaur will play one of the most important matches of his career as he meets Jannik Sinner in the Australian Open quarter-final. The world No. 8 has never made it this far at his home Grand Slam tournament. And he's hoping to go even further to keep Australia's hopes alive in the men's singles draw.

Question marks are lingering over Jannik Sinner and Alex de Minaur's Australian Open quarter final as rumours continue to swirl over the Italian's health.

Alex de Minaur busted through his Australian Open fourth-round ceiling with a brutal display against Alex Michelsen. Now, a date with world No. 1 Jannik Sinner looms.

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

Alex De Minaur kept the home flag flying at the Australian Open as he beat rising American Alex Michelsen 6-0 7-6(5) 6-3 to reach the quarter-finals for the first time on Monday.

Jannik Sinner disposed of Holger Rune in four sets in the fourth round of the Australian Open as the World No. 1 player looks to make it back-to-back Grand Slam

A falling feather leads to a fuming German, a teenager makes an instant impact, and it is double delight for Aussie doubles. Here are the five quick hits from day 10 of the Australian Open.

In the Round of 16 at the Australian Open on Sunday, Alex de Minaur (ranked No. 8) meets Alex Michelsen (No. 42).In his most recent match on Friday, Michelsen knocked off Karen Khachanov in three

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.

Ben Shelton's Australian Open quarterfinal foe, Lorenzo Sonego, produced the shot of the tournament — diving to his left for a volley with so much spin that the ball bounced on one side of the net, then floated back over to the other — but it was the American who ended up with the victory Wednesday.

Ben Shelton advanced to the semi-final of the hard court major after beating Lorenzo Sonego 6-4, 7-5, 4-6, 7-6 (7-4) at the Rod Laver Arena on Wednesday.