Novak Djokovic retired injured after losing the first set 7-6(5) against Alexander Zverev on Friday to put the German through ...

Novak Djokovic retires from Australian Open semi-final as Alexander Zverev advances - live - Djokovic is out of the ...

MELBOURNE: Novak Djokovic retired injured after losing the first set 7-6(5) against Alex Zverev on Friday to put ...

Novak Djokovic said Friday there was a chance he may have played his last Australian Open after retiring with a muscle tear in the semi-finals to leave his bid for a record 25th Grand Slam crown in ...