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

Jannik Sinner overcame physical issues to beat Holger Rune in the Australian Open round-of-16 and later claimed that he knew he would "struggle" because he woke up feeling unwell. With the two players tied to one set apiece, the defending champion appeared to increasingly start struggling with his movement and overall abilities on the court.