Djokovic into Australian Open semi-finals after Musetti forced to retire two sets up
Australian Open LIVE: Sinner cruises past Shelton, Musetti forced to retire vs Djokovic
Jannik Sinner cruises past Ben Shelton to set up semi-final with Novak Djokovic
Djokovic out to spoil Italian dream in Australia, Swiatek facing tough test vs Rybakina
