Defending champ Jannik Sinner drops set for first time since October, but rallies for win; American Danielle Collins plays villain while advancing.

Defending champion Jannik Sinner’s consecutive-sets streak has ended in the second round of the Australian Open.

Sinner has raced to a 63-18 win-loss record at Grand Slams. On the other hand, his win-loss record at the Australian Open reads as 17-4. Notably, Sinner enjoyed a 23-2 win-loss record at Slams last year.

But having stunned ninth seed Andrey Rublev in straight sets in the first round, the teenager went down fighting, Italy’s Lorenzo Sonego pulling through 6-7 (6-8), 6-3, 6-1, 3-6, 6-3 to disappoint the vocal Brazilian fans.

Jannik Sinner has started his Australian Open title defense with a challenging win over No. 35-ranked Nicolas Jarry.

In a match slated for Tuesday, Tristan Schoolkate (No. 173 in rankings) will meet Jannik Sinner (No. 1) in the Round of 64 at the Australian Open.Sinner’s last competition was a win, 6-2,

Defending champion Jannik Sinner is through to third round after Britain's Katie Boulter is beaten following Emma Raducanu's win at the Australian Open.

Jannik Sinner has announced that he will part ways with his coach Darren Cahill at the end of the season. The Australian, who joined Sinner's team in July 2022, will conclude the 2025 campaign before stepping back from full-time tennis.

Watch the match highlights between Jannik Sinner & Tristan Schoolkate in Round 2 of the 2025 Australian Open Men's Singles Tournament Tennis.

Jannik Sinner has admitted he was 'struggling' to cope with the breezy conditions at the Australian Open as he beat Tristan Schoolkate in four sets on Thursday morning. The world No 1 is hoping to defend his title Down Under,