Coco Gauff has made improvements to her serving and her forehand. And the strides in both of those areas are among the reasons she's considered one of the few women ready to challenge two-time defending champion Aryna Sabalenka for the title at the Australian Open.

Ahead of the Australian Open, we take a look at five women to watch in the first Grand Slam of the year, starting on Sunday.

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

Coco Gauff still hasn't lost a match or even at set at the Australian Open — or, actually, this season. She moved into the fourth round at Melbourne Park with a straightforward 6-4, 6-2 victory over 2021 U.