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.

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.