Novak Djokovic throws his ailing 37-year-old body into an Australian Open semi-final against Alexander Zverev on Friday while defending champion Jannik Sinner faces Ben Shelton.

Australians are guaranteed to be crowned champions as two Aussie duos contest the mixed doubles final. Follow live.

Sinner toppled de Minaur 6-3, 6-2, 6-1 in an hour and 48 minutes at Rod Laver Arena, shuttering the dreams of the home nation. De Minaur will have to find improvements to become a ...