Ashleigh Barty says she would never have been in the position to win the French Open had she not walked away from tennis five years ago.

Nick Kyrgios is Australia's last singles hope at the Australian Open, with Ashleigh Barty suffering a straight-sets third-round loss to big-hitting Naomi Osaka.

Home hope Ashleigh Barty is relishing the chance to reach the second week of the Australian Open for the first time with victory over Naomi Osaka on Saturday.

Australia's top-ranked woman Ashleigh Barty has outplayed hard-hitting Italian Camila Giorgi to earn an Open third-round berth.

Ashleigh Barty is among a host of big names set to swelter with the temperature set to hit 39C on day four of the Australian Open.