The Australian Open 2025 men’s singles first round matches are set to begin on Sunday in Melbourne, and all eyes will be on Jannik Sinner, Carlos Alcaraz and Novak Djokovic. Sinner is the defending champion, but has also been dealing with controversy, regarding his ongoing doping investigation. Sinner will open his campaign against Chile’s Nicholas Jarry, and Djokovic will face Indian-origin American player Nishesh Basavareddy in his opener. On the other hand, Carlos Alcaraz will take on Kazakhstan’s Alexander Shevchenko in the first round. Jannik Sinner and Novak Djokovic after their Australian Open semi-final last year.(AP) Last year, Sinner’s victorious run included a win against 10-time AUS Open champ Djokovic in the semis and Russian Daniil Medvedev in the final. Here is a list of the top-five men’s singles title contenders at the Australian Open 2025: 5. Daniil Medvedev The Russian ace is a three-time Australian Open runner-up and last year missed a chance to grab the title, when he lost to Sinner in the final. Interestingly, among the four Grand Slam events, Medvedev has …