The first Grand Slam of the year is always highly anticipated, and the 2025 Australian Open is no exception. With the likes of Jannik Sinner, Aryna Sabalenka, and Carlos Alcaraz tipped as favorites, the tournament is shaping up to be a thrilling battle. But who are the dark horses? And what are the key storylines to watch? We take a look at the main contenders for the title, as well as the players who could cause an upset.