Defending champion Jannik Sinner has moved into the quarterfinals at the Australian Open after beating Holger Rune during a match slowed down by medical timeouts for each player and a delay because the net got knocked loose.

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 and Iga Swiatek progress to the quarter-finals of the Australian Open amid challenges. Sinner battled illness to defeat Dane Holger Rune. Meanwhile, Swiatek continued her quest for a maiden win by beating Eva Lys.

Novak Djokovic was at the centre of another Australian Open row on Monday while Jannik Sinner needed medical attention in fierce heat to battle into the quarter-finals and Iga Swiatek won easily. But American teenage qualifier Learner Tien’s fairytale run is over after he suffered a thigh problem in a four-set defeat to Italy’s Lorenzo Sonego in Melbourne.

Novak Djokovic was at the centre of another Australian Open row on Monday while defending champion Jannik Sinner needed medical attention in fierce heat to battle into the quarter-finals.

Jannik Sinner battled through illness to reach the quarter-finals of the Australian Open on Monday as his Italian compatriot Lorenzo Sonego ended teenager Learner Tien's fairytale run.

Elina Svitolina of Ukraine gestures during her fourth round ... (AP Photo/Manish Swarup) Jannik Sinner of Italy reacts during his fourth round match against Holger Rune of Denmark at the ...

Jannik Sinner's coach Darren Cahill was full of praise for Novak Djokovic following his big win over Carlos Alcaraz, declaring it "one of the greatest performances." On Tuesday, the record 10-time Australian Open champion came back from a set down to beat the third-seeded Spaniard 4-6 6-4 6-3 6-4 and reach his 12th semifinal at Melbourne Park.

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 score in the quarterfinals against No.

Defending champion Jannik Sinner raced into the Australian Open semifinals on Wednesday in imperious fashion after Iga Swiatek was equally ruthless to close on a first Melbourne crown. Italian world number one Sinner swept aside an out-classed home hope Alex de Minaur 6-3,

.