Novak Djokovic dramatically retired from his Australian Open semi-final against Alexander Zverev after being unable to play through a torn muscle in his upper left leg before admitting there is a ...

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

Alexander Zverev defended Novak Djokovic for pulling out of their Australian Open semi-final with injury Friday, after the 24 ...