Novak Djokovic is 37 and was forced to stop playing because of an injury at two of the past four Grand Slam tournaments.

Djokovic, who retired due to injury after the first set, was booed by the crowd as he walked off Rod Laver Arena.

Djokovic is only interested in tennis' biggest prizes. He still has the game to win them, but at age 37 his body is letting ...

Spectators booed an injured Novak Djokovic as he left the court in Rod Laver Arena after quitting one set into his Australian ...

Novak Djokovic has retired from his Australian Open semifinal against Alexander Zverev after losing the first set in a ...

Novak Djokovic’s quest for a record 25th grand slam title has been cut short at the Australian Open after he stunningly ...

An ailing leg leads to an abrupt finish for the 24-time major winner, who’s a 10-time winner in Melbourne.

Novak Djokovic is booed off court by some Australian Open fans after retiring injured from his semi-final against Alexander ...