Jannik Sinner launched his Australian Open title defence with a battling straight-sets win on Monday as Iga Swiatek and Coco Gauff also powered into round two.

Coco Gauff and Jannik Sinner were among the top tennis stars to advance through first-round victories Monday at the 2025 Australian Open. Stefanos Tsitsipas, Grigor Dimitrov and Victoria Azarenka left Melbourne early.

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

It has been about four months since Jannik Sinner and Aryna Sabalenka polished off their US Open titles in comfortable fashion. Sinner dropped only two of 23 sets, while Sabalenka dropped only one of 15, and both won their second Slam titles of 2024 on their way to year-end No. 1 rankings.

The 2025 Australian Open runs from January 12-26. Tennis fans can follow Sports Illustrated's Serve on SI for all the most important news from the sport.

The best players in the sport of tennis are in Melbourne to compete in the second round of the 2025 Australian Open after the first round of the men's and women

MELBOURNE, Australia — After wasting a set point in the second tiebreaker with an ill-conceived drop shot, Jannik Sinner quickly ... 6-4 on John Cain Arena. Coco Gauff had a little difficulty ...

The best players in the sport of tennis are in Melbourne to compete in the third round of the 2025 Australian Open. After the second round of the men's and wome

Read full article: Transform your bedroom with these buttery soft sheets Enjoy endless games and movies in stunning HD MELBOURNE – After wasting a set point in the second tiebreaker with an ill ...

Jannik Sinner, Carlos Alcaraz, Novak Djokovic, Coco Gauff and Iga Swiatek are some of the prominent players in action on the second day.

Jannik Sinne, Carlos Alcaraz and Novak Djokovic will start their campaign on Day 2 of the Australian Open 2025 on Monday, January 12. Coco Gauff, Iga Swiatek and Naomi Osaka will also be in action on Monday in Melbourne.