Novak Djokovic celebrated his 100th Australian Open victory with an ace, while Naomi Osaka's walk-on drew attention on Day 4. Top seeds Carlos Alcaraz and Aryna Sabalenka begin their second-round campaigns, with Australia's Alex de Minaur also in action. The tournament's prize pool of AU$111.5 million remains a topic of discussion.

Beyond the court, entry queues at Melbourne Park are causing significant delays for fans. The ongoing debate about whether the prize money is sufficient for the year's first major reflects broader tensions in tennis. Meanwhile, Coco Gauff advanced despite serve struggles, and Alex de Minaur voiced his desire to make his home country proud.

As the second round unfolds, the focus shifts to potential upsets and contenders for the title. Novak Djokovic's milestone win adds pressure on other favorites like Jannik Sinner, who has refined his game since the US Open. The Australian Open's unique challenges—from Melbourne's heat to its logistics—continue to shape the narrative of this Grand Slam.