Jannik Sinner will launch his Australian Open title defence under a stubborn doping cloud but the whiff of scandal may do little to halt the Italian juggernaut. Sinner remains the man to beat at Melbourne Park even as doping officials seek a two-year ban for the world number one for failing two drugs tests last March.

Here are some of the top men at the Australian Open, which starts at Melbourne Park on Sunday morning local time (Saturday night EST), with money-line odds via BetMGM Sportsbook: Jannik Sinner Seeding: 1 Career-Best Ranking: 1 Country: Italy Age: 23 2024 Record: 73-6 2024 Titles: 8 Career Titles: 18 Grand Slam Titles: 2 — Australian Open (1: 2024),

Jannik Sinner and Aryna Sabalenka aim to defend their titles at the 2025 Australian Open, starting with qualifiers on January 6. Major matches begin January 12, culminating in finals on January 25 and 26 at Melbourne Park,