Novak Djokovic of Serbia reacts at a press conference after retiring in his semifinal match against Alexander Zverev of Germany at the Australian Open tennis championship in Melbourne, Australia, ...

Novak Djokovic could miss a "couple months" with a torn hamstring and potentially return in time for the French Open in May, ...

Novak Djokovic and Andy Murray haven't decided whether to continue ... 7 seed Djokovic to retire Friday after losing the first set to No. 2 Alexander Zverev of Germany in a tiebreaker. Both Djokovic ...

Alexander Zverev asked the Melbourne crowd not to boo Novak Djokovic after the latter retired hurt, conceding the Australian Open semi-final to the German.

Novak Djokovic of Serbia gestures as he leaves Rod Laver Arena after retiring in his semifinal match against against Alexander Zverev of Germany at the Australian Open tennis championship in Melbourne ...

Novak Djokovic has almost fully recovered from the injury that ended his Australian Open campaign and has set his sights on lifting a 100th singles title at next month's Qatar Open.

It could be tempting to write off Novak Djokovic at this point, to think he might be closer than ever to being done competing for Grand Slam ...

The great Aussie turned 40 in 1974 but still played at a high level. Rosewall toppled John Newcombe at Wimbledon and the US ...

MELBOURNE, Australia — It could be tempting to write off Novak Djokovic at this point, to think he might be closer than ever to being done competing for Grand Slam titles and closer than ever to ...

Novak Djokovic of Serbia shakes hands with chair umpire James Keothavong after retiring from his semifinal against Alexander Zverev of Germany at the Australian Open tennis championship in ...