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.

Jannik Sinner is through to the Australian Open quarterfinals after a drama-filled fourth-round win over Holger Rune. World No. 1 Sinner won in four sets, 6-3. 3-6, 6-3, 6-2, but this did not tell the story of a contest defined by illness.

Jannik Sinner defeated Holger Rune in four sets at the Australian Open after experiencing a health scare during the match.

Jannik Sinner faces Holger Rune at the 2025 Australian Open. Our Australian Open odds series has our Sinner-Rune prediction, odds and pick. Find out how to watch Sinner Rune. Jannik Sinner continues to advance at this Australian Open,

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.

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

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 defending champion has put to bed any concern about his health after demolishing the Australian in under two hours.

Concerned' Djokovic prepares for Australian Open semi-final after Sinner demolishes De Minaur - live - Sinner booked his place in the semi-finals with a 6-3 6-2 6-1 victory over Australia’s De Minaur

Jannik Sinner advanced to the semi-final of the men's singles at Melbourne Park after beating homw favourite Alex de Minaur 6-3, 6-2, 6-1 at the Rod Laver Arena.