To make matters worse, de Minaur has also struggled to beat higher-seeded players throughout his Australian Open career; the Aussie is 15-0 all-time against players ranked lower than him, but just 1-8 against those above him, the lone win coming against then-world no. 87 Gerald Melzer in 2017, his debut at his home Grand Slam.

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

Alex de Minaur's mother Esther could not hide her emotions after the tennis star reached the Australian Open 2025 quarter-final for the first time. Alex de Minaur will face defending champion Jannik Sinner in the quarter-final.

Alex de Minaur has reached the Australian Open quarter-finals for the first time, setting up an epic last-eight match with world no.1 and reigning champion Jannik Sinner.

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. The 25-year-old has now reached the last eight at every Grand Slam and will face top seed and defending champion Jannik Sinner for a place in the semis.

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

Watch the match highlights between Alex Michelsen & Alex de Minaur in Round 4 of the 2025 Australian Open Men's Singles Tournament Tennis.

Alex de Minaur's Australian Open fourth-round opponent Alex Michelsen has a hip injury he received a medical timeout for in his previous match.