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

Zverev, who is seeking his first Grand Slam title, admonished the crowd a bit for the reaction during his on-court ...

Novak Djokovic's bid for 11th Australian Open title ends after a muscle tear in his left leg. He says injury happened during ...

Jannik Sinner swept Ben Shelton in straight sets while Alexander Zverev advanced Friday through an injury-related retirement ...

Djokovic could not play on through the pain and quit the match after the first set as Zverev reached his first Australian ...

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

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

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

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

A left leg injury forced Novak Djokovic to retire from his Australian Open semifinal match against Alexander Zverev, leading ...