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.

Zverev will face defending Australian Open champion and No. 1 seed Jannik Sinner, who beat American Ben Shelton 7-6 (2), 6-2, ...

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

Ten-time Australian Open champion Novak Djokovic has finally had his run ended at this year's tournament by Alex Zverev. The ...

Novak Djokovic retired due to injury after losing the first set to Alexander Zverev 7-6 (5) in the semifinals of the ...

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

Listen to the Australian Open on 5 Sports Extra and BBC Sounds and follow on the BBC Sport Website Andrea Petkovic, Ryan ...

Alexander Zverev chided the crowd after they booed Novak Djokovic for retiring due to injury after the first set in an ...

Novak Djokovic is out of the Australian Open in stunning fashion. The 24-time slam champion medically retired immediately ...

An injured Novak Djokovic retired from his Australian Open semifinal match against Alexander Zverev after losing the opening ...