Men’s World No. 1 Jannik eyes second successive singles title at Australian Open starting today, while Aryna, leader of the women’s rankings, is gunning for her

Defending champion Jannik Sinner lost his first set since October but recovered to beat Tristan Schoolkate and reach the third round of the Australian Open.

Where is Aryna Sabalenka from? Sabalenka ... Along with Sabalenka, several other big names in the tournament such as Daniil Medvedev and Andrey Rublev are also competing under no national flag.

The two defending champions, Jannik Sinner and Aryna Sabalenka, enter the 2025 Australian Open as favorites to win in Melbourne again.

Daniil Medvedev ripped 24 aces and converted six break points to outlast Kasidit Samrej in a 3-hour, 8-minute first-round victory Tuesday at the 2025 Australian Open. No. 9 Andrey Rublev was the latest upset victim.

Sinner upset Djokovic in the semifinals here last year before coming back to beat Daniil Medvedev in the final 3-6, 3-6, 6-4, 6-4, 6-3 for his first Grand Slam singles title.

Russia's Daniil Medvedev reacts during a press conference ahead of the Australian Open tennis championship in Melbourne, Australia, Friday, Jan. 10, 2025. (AP Photo/Ng Han Guan) Aryna Sabalenka ...

Sinner upset Djokovic in the semifinals here last year before coming back to beat Daniil Medvedev in the ... defending champions Sinner and Aryna Sabalenka walked into the official ceremony ...

Carlos Alcaraz faces a tricky test in the third round. Novak Djokovic and Aryna Sabalenka will also be in action on Friday in Melbourne.

Defending champ Jannik Sinner moved through to the third round while last year’s runner-up, Daniil Medvedev, is out.

Alcaraz is already the youngest man in history to win grand slams on the three different surfaces, and he added a second Wimbledon title to his French Open and US Open triumphs in July. The Australian Open is what is missing, with the opening grand slam of the year the tournament where Alcaraz has had the least success so far in his career.