Takes on Tommy Paul in semis; Tsitsipas up against Khachanov
MELBOURNE: Novak Djokovic, winner of 21 major titles, nine Australian Open trophies, ranked No. 1 for a record 373 weeks, has nothing to prove to anyone. Even to himself. But at age 35, making his 18th appearance at Melbourne Park, a year after he was deported for his vaccine stand, the Serb is looking for payback. And nothing short of a tenth Norman Brookes vase would suffice.