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 has fired back at a British tennis blogger who criticised his hapless Australian Open performance against Jannik Sinner in a late-night social media comment which has now gone viral.

Jelena Dokic has launched a staunch defence of Alex de Minaur and his performance against Jannik Sinner on Wednesday night after the Aussie was knocked out of the Australian Open in brutal fashion. De Minaur lost his 10th match in 10 attempts against the World No.1, going down 6-3 6-2 6-1 in the quarter-finals.

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.

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.

The WTA No. 25 was in the stands of Rod Laver Arena to watch De Minaur break new ground at the Australian Open on Monday, cheering him on as he beat Alex Michelsen in the last 16.

Defending champion Jannik Sinner dismissed No. 8 seed Alex de Minaur 6-3, 6-2, 6-1 to reach the Australian Open semifinals, where he will take on American Ben Shelton for a place in the final.

Australia’s biggest hope, Alex de Minaur, reached the Australian Open quarterfinals for the first time in his career, becoming the first Australian male to do so since Nick Kyrgios in 2015.

De Minaur was blown off the court in his straight-sets loss to reigning Australian Open champion Jannik Sinner on Wednesday night - leaving him feeling like he'd been 'smacked across the face'.

Gadecki and Peers came from a set down to power past their Aussie rivals and held their nerve in the super-tiebreak to claim their first title together. The duo became the first Aussie pair to win a mixed doubles title since Matt Ebden and Jarmila Wolfe (nee Gajdosova) in 2013.