In the Australian Open Round of 16 on Sunday, No. 1-ranked Jannik Sinner takes on No. 13 Holger Vitus Nodskov Rune.Sinner enters the Round of 16 after his three-set win on Saturday over Marcos

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.

Jannik Sinner staged a remarkable physical comeback to reach the Australian Open quarter-finals. The Italian had to battle extreme humid conditions in his fourth round clash that left him shaking

Sinner was joined in the quarter-finals by countryman Lorenzo Sonego, who is through to this stage at a grand slam for the first time after ending the run of 19-year-old American Learner Tien with a 6-3 6-2 3-6 6-1 victory.

Jannik Sinner (No. 1 ranking) will take on Marcos Giron (No. 46) in the Round of 32 of the Australian Open on Friday, January 17.Sinner earned a four-set victory over Tristan Schoolkate (4-6, 6-4,

Defending champion Jannik Sinner stages mid-match physical recovery to overcome Holger Rune in four sets at the Australian Open on Monday; watch all the action from the ATP and WTA Tours on Sky Sports Tennis and Sky Sports+,

Jannik Sinner is a shooting star in tennis, and the World No. 1 has already received a few nicknames and monikers from fans. Some like to reference Sinner's bright red hair with "Carrot Top," while others give the nod to his childhood name as the "Fox.

Defending champion Jannik Sinner needed medical attention in energy-sapping heat and overcame a long interruption when he broke the net to reach the Australian Open quarter-finals

Jannik Sinner was wobbling around like a drunken sailor. We witnessed controversial tit-for-tat medical time-outs with Holger Rune, stare-offs, momentum swings, terrible points, epic rallies, erratic sets and a wildly see-sawing match.

World no. 1 Jannik Sinner is through to his third Australian Open quarter-final within four years. The Italian faced Holger Rune in the fourth round at Rod Laver Arena and earned a 6-3, 3-6, 6-3, 6-2 victory in three hours and 13 minutes.

Sinner took the first set in just 35 minutes. However, Rune hit back in the second. Check the Jannik Sinner Vs Holger Rune match report here