Defending champion and top seed Jannik Sinner overcame a debilitating medical episode as well as Dane Holger Rune to reach the quarter-finals of the Australian Open for the third time with a 6-3 3-6 6-3 6-2 victory on Monday.

Jannik Sinner, the defending Australian Open champion, destroyed local hope Alex De Minaur in just 108 minutes.

Defending champion Jannik Sinner has moved into the quarterfinals at the Australian Open after beating Holger Rune in a match slowed down by medical timeouts for each player and a delay because the ne

The 23-year-old Italian’s next opponent in Australia will be No. 13 Holger Rune, who beat Miomir Kecmanovic 6-7 (5), 6-3, 4-6, 6-4, 6-4.

Iga Swiatek booked her second Australian Open semi-final with a spectacular display while men's champion Jannik Sinner was also at his brilliant best.

Iga Swiatek is dominating her Australian Open opponents the way no one has at Melbourne Park since Maria Sharapova in 2013. Swiatek's latest lopsided win came via a 6-1, 6-2 scoreline in the quarterfinals against No.

Jannik Sinner has played down an illness which left him “dizzy” and seeking treatment as his Australian Open title defence came under significant threat on Monday.

The World No. 1, despite feeling unwell in sweltering conditions, kept up his title defense with a four-set triumph.

MELBOURNE, Australia — Ben Shelton’s Australian Open quarterfinal foe, Lorenzo Sonego, produced the shot of the tournament — diving to his left for a volley with so much spin that the ball bounced on one side of the net, then floated back over to the other — but it was the American who ended up with the victory.

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.

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