WORLD number one Jannik Sinner was seen trembling in worrying scenes during the Australian Open. The incident occurred during his fourth round win over Holger Rune at the Rod Laver Arena today.

MELBOURNE, Australia (AP) — 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.

Jannik Sinner of Italy is seen during a medical time out during his round 4 match against Holger Rune of Denmark during the 2025 Australian Open at Melbourne Park in Melbourne, Monday, January 20 ...

Jannik Sinner and Iga Swiatek are eyeing a place in the Australian Open quarter-finals on Monday while golden couple Gael Monfils and Elina Svitolina hope to extend their family odyssey.

World No. 1 Jannik Sinner fought through blistering heat and an undisclosed ailment to defeat Holger Rune 6-3, 3-6, 6-3, 6-2 and advance to the quarterfinals of the Australian Open on Monday.