Alex de Minaur ticked off yet another milestone in his illustrious career Monday, taking down American Alex Michelsen to qualify for the quarter-finals of the Australian Open for the very first time.

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.

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.

Alex de Minaur will be aiming to make the Australian Open quarter-finals for the first time when he takes on American talent Alex Michelsen at Rod Laver Arena on Monday night. The Australian eighth seed has reached the fourth round on four occasions but has never made it through to the last eight at Melbourne Park.

The stage is set for an entertaining day of quarterfinal action at the Australian Open with four intriguing matches on the slate at Melbourne Park. As always, we here at LWOT will be offering our predictions for every match – including all the action in the women’s singles draw – but who will secure their spot in the last four?

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

Australian star Alex de Minaur forms one half of a tennis power couple with his partner Katie Boulter. The duo have both enjoyed a rise up the rankings in 2024 and will look for more success this season.