Naomi Osaka earned a dramatic second-round victory at the Australian Open, defeating Sorana Cirstea 6-3 4-6 6-2. The match was marred by visible tension, with a frosty handshake and a brief on-court exchange after the final point. Osaka later quipped she was 'sorry she was mad' about her opponent's frustration with her on-court energy.

The win keeps Osaka's Melbourne hopes alive as she seeks her first Grand Slam title since the 2021 Australian Open. Meanwhile, defending champion Madison Keys advanced but struggled, needing a comeback to beat Ashlyn Krueger 6-1 7-5. Top seed Iga Swiatek also progressed comfortably, seeing off Marie Bouzkova 6-2 6-3.

Other notable results saw fourth seed Amanda Anisimova and sixth seed Jessica Pegula advance, while former world No. 1 Karolina Pliskova continued her comeback from ankle surgery. The early exit of 2024 semi-finalist Paula Badosa to unseeded Oksana Selekhmeteva was the day's biggest upset, shaking up the women's draw.