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.

The defending champion moved into the quarterfinals at Melbourne Park on Monday by eliminating the 13th-seeded Rune 6-3, 3-6, 6-3, 6-2.

The screw holding the net in place at the Australian Open’s main stadium has been jarred loose during defending champion Jannik Sinner’s fourth-round victory over Holger Rune.

Jannik Sinner, the world No 1 and defending champion, looked to be heading out of the Australian Open until he was rescued by a controversial medical time-out.

Jannik Sinner has revealed that he felt unwell ahead of his win over Holger Rune at the Australian Open, and is relieved to be through to the quarter-finals.