Jannik Sinner continued his quest for consecutive Australian Open titles with a clinical deconstruction of Alex De Minaur in the last of the men’s singles quarter-finals.

Alex de Minaur said a humbling defeat by Jannik Sinner in the quarter-finals of the Australian Open on Wednesday felt like a slap across the face after a period of improvement in which he emerged as his nation's best hope of ending a major drought.

Defending champion Jannik Sinner dismissed eighth seed Alex de Minaur 6-3 6-2 6-1 to reach the Australian Open semi-finals and extend the country's decades-long wait for another homegrown singles winner at the Grand Slam on Wednesday.

Jim Courier couldn't help but take a cheeky dig at Alex de Minaur over fiancee Katie Boulter's absence from his loss to Jannik Sinner in the Australian Open quarter-finals on Wednesday night. De Minaur was blown off the court in a masterclass from Sinner, with the Italian winning 6-3 6-2 6-1.

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,

Alex de Minaur was given a blunt reminder on Wednesday night of the level he needs to reach if he is to ever taste victory in a grand slam tournament.

Local hope Alex de Minaur has suffered a straight-sets Australian Open quarter-final loss to world No.1 and defending champion Jannik Sinner.

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

Defending champion Jannik Sinner dismissed eighth seed Alex de Minaur 6-3 6-2 6-1 to reach the Australian Open semi-finals and extend the country's decades-long wait for another homegrown singles winner at the Grand Slam on Wednesday.

Jannik Sinner has marched into the semi-finals of the Australian Open after comprehensively defeating Alex de Minaur in straight sets.In arguably the biggest match of de Minaur's career, the local hope wasn't even given a sniff against the world No.

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.