Jannik Sinner was suffering from heat and other problems during his fourth-round match at the 2025 Australian Open against 13th seed Holger Rune. He even took an 11-minute medical timeout following which he finished the match in his favor with a scoreline of 6-3,

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 and Holger Rune thrilled fans on Sunday with what will likely go down as the best point of the 2025 Australian Open. Sinner, the World No. 1

Jannik Sinner has achieved his goal by reaching the quarterfinals at the 2025 Australian Open. The world number 1 defeated a very dangerous opponent like Holger Rune in four sets, overcoming a malaise that hit him between the second and third sets and also forced him to leave the court for assistance.

In the Australian Open Round of 16 on Sunday, No. 1-ranked Jannik Sinner takes on No. 13 Holger Vitus Nodskov Rune.Sinner enters the Round of 16 after his three-set win on Saturday over Marcos

In the quarterfinals, Sinner will face No. 8 Alex de Minaur of Australia, who ousted American Alex Michelsen 6-0, 7-6 (5), 6-3. It will be the first quarterfinals appearance for de Minaur in his home country's Grand Slam, and he became just the third Aussie man to reach the round in 20 years.

First came the medical timeouts, one each for Jannik Sinner and Holger Rune with the temperature above 90 degrees Fahrenheit (32 Celsius) at the Australian Open. Then came the bizarre sight of a 20-minute delay because the net at Rod Laver Arena detached from the court after being hit by a big Sinner serve.

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.

Jannik Sinner came through a gruelling match against Holger Rune at the Australian Open, but there were concerns over his health during the clash as he admitted he was not feeling well before the encounter even got underway.

World No.1 Jannik Sinner has copped some backlash for his mid-match Medical Time Out against Holger Rune as he prepares to play Alex de Minaur in the quarter-final of the Australian Open. Sinner was visibly struggling in the second and third set against Rune with his hands were visibly shaking between games in the Australian heat.

The stage is set for an entertaining day of quarterfinal action at the Australian Open with four intriguing matches on the slate at Melbourne Park. As always, we here at LWOT will be offering our predictions for every match – including all the action in the women’s singles draw – but who will secure their spot in the last four?