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.

It was the opening round of the 2017 Australian Open in de Minaur’s first main draw at his first major championship in his home country, when the then-17-year-old saved a match point in the fourth set before beating Gerald Melzer in five sets and almost four hours.

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.

Alex de Minaur has become the first Australian man since 2015 to reach the Open quarter-finals with a straight-sets win over rising American Alex Michelsen.

Alex de Minaur broke new ground at the Australian Open on Monday, reaching the quarter-final of his home Grand Slam for the first time. The eighth seed’s run in Melbourne completes the ‘last eight’ set for the 25-year-old,

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

Home favourite Alex De Minaur will face Jannik Sinner in the quarterfinals of the Australian Open after the world number eight beat world number 42 Alex Michelsen of the US 6-0 7-6 6-3 in the round of 16 Monday.

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.