Coco Gauff moved into the fourth round at Melbourne Park with a straightforward victory over Leylah Fernandez.

Naomi Osaka, a two-time champion in Australia, stopped playing because of a strained abdominal muscle after dropping the first set of her match against Tokyo Olympics gold medalist Belinda Bencic.

Defending champion Aryna Sabalenka was pushed to the limit in setting up an Australian Open showdown with talented teenager Mirra Andreeva on Friday