10-time men's champion Novak Djokovic is through to round four at the Australian Tennis Open after a straight sets win in Melbourne.

Also advancing in the men's draw on night seven were 12th seed Casper Ruud and ninth seed Taylor Fritz - who ended the Australian Open career of 2014 champion Stan Wawrinka in four sets.

In the women's draw - second seed Iga Swiatek and fifth seed Elena Rybakina went through, but two-time champion Naomi Osaka withdrew from her round three match - citing an abdominal injury linked to body changes from her pregnancy.

Tennis correspondent Dave Worsley joined Piney to recap the action.

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