Defending champions Madison Keys and Jannik Sinner headline the Australian Open draw, but experts question if either can repeat. Sinner, the two-time defending champion, is favored but faces a stern test from world No. 1 Carlos Alcaraz, who is still hunting his first Melbourne Park title. The men's draw is loaded with their ongoing rivalry.

On the women's side, Aryna Sabalenka is the overwhelming favorite to reclaim her title after last year's final heartbreak. She arrives in peak form, having just won Brisbane without dropping a set. While Coco Gauff and Iga Swiatek loom as serious threats, Sabalenka's dominant hard-court record makes her the player to beat in the women's singles.

The tournament begins Sunday, with experts split on whether the defending champions can hold their ground. For Keys and Sinner, the path is fraught with top-tier competition. Their ability to navigate the pressure of a Grand Slam defense will define the fortnight in Melbourne.