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.

World No.1 and defending champion Jannik Sinner, Iga Swiatek, Elina Svitolina, Elena Rybakina and other big players will be in action on Day 9 of the hard court major at the Melbourne Park.

MELBOURNE - 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. Read more at straitstimes.

Elina Svitolina of Ukraine gestures during her fourth round match against Veronika Kudermetova of ... (AP Photo/Manish Swarup) Jannik Sinner of Italy reacts during his fourth round match against ...

MELBOURNE, Australia — First came the medical timeouts, one each for Jannik Sinner and Holger ... following her fourth round win over Veronika Kudermetova of Russia at the Australian Open ...

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

The Australian Open is in full swing with the top players fighting it out amongst themselves for one of the most prestigious prizes in tennis.

Svitolina advanced by defeating Veronika Kudermetova in straight sets, 6-4, 6-1. Point. Of. The. Tournament. No. 1 men's seed and defending Australian Open champion Jannik Sinner overcame an illness that caused several medical delays throughout his fourth ...

World No. 1 Jannik Sinner fought through blistering heat and an undisclosed ailment to defeat Holger Rune 6-3, 3-6, 6-3, 6-2 and advance to the quarterfinals of the Australian Open on Monday. Sinner, the defending champion, met with the tournament doctor before beginning the match and needed a medical timeout in the third set.

Jannik Sinner fought through illness to reach the Australian Open's quarter-finals, while Gael Monfils retired due to a back injury. Iga Swiatek continued her impressive form, defeating Eva Lys. Elina Svitolina uplifted Ukraine with her win,

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 defending champion Jannik Sinner needed medical attention ... Ukraine's Elina Svitolina beat Veronika Kudermetova -- then declined to shake the Russian's hand.