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 unusual 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 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.