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

In the Australian Open quarterfinals on Tuesday, Jannik Sinner faces Alex de Minaur.In his most recent match on Sunday, Sinner took down Holger Vitus Nodskov Rune in four sets, 6-3, 3-6, 6-3, 6-2,

Jelena Dokic has warned Alex de Minaur against putting too much focus into the health of opponent Jannik Sinner for their quarter-final clash at the Australian Open. De Minaur advanced to the final eight of his home grand slam for the first time on Monday night, beating American Alex Michelsen 6-0 7-6 (7-5) 6-3.

De Minaur is the first Aussie male to reach the last eight at Melbourne Park since Nick Kyrgios in 2015. The achievement was not lost on his mum Esther with video of her emotional response going viral. You can watch the adorable moment in the video player below.

Alex de Minaur knows he still has a mountain to climb after reaching the last eight of Australian Open for the first time. Looking to end a 49-year drought since Australia celebrated a local men's winner, de Minaur lodged a convincing 6-0 7-6 (7-5) 6-3 victory over rising American Alex Michelsen on Monday night.

Alex de Minaur gave a cute nod to his fiance, Katie Boulter, after reaching his first Australian Open quarter-final. The world No. 8 downed rising star Alex Michelsen 6-0 7-6 (5) 6-3 on Monday to break new ground at his home Grand Slam tournament.

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

Once again, tennis power couple Katie Boulter and Alex de Minaur have displayed their unity, this time in Australia. De Minaur achieved a significant milestone at his home Slam on Monday,

But his hopes of joining fellow Americans Tommy Paul and Ben Shelton in the quarter-finals were undermined by a terrible start that gifted De Minaur the opening set. De Minaur led 6-0 2-0 and had points for a double break in the second set before Michelsen came to life.

Alex de Minaur will enter his blockbuster Australian Open clash with world No.1 Jannik Sinner as the only man to make four straight grand quarter-finals.