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.

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 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 comes through a tough physical battle against Holger Rune to reach the Australian Open quarter-finals.

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

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.

Defending champion Jannik Sinner dismisses concerns about his physical state to thrash home hope Alex De Minaur and reach the Australian Open semi-finals.

Jannik Sinner has played some illness concerns following a ruthless victory over Alex De Minaur at the Australian Open.

Novak Djokovic and Jannik Sinner both required medical attention in their most recent matches after struggling physically on court. Their timeouts threw off their opponents.