Novak Djokovic wrote a heartfelt message to Alexander Zverev on Instagram after his injury retirement in the Australian Open.

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

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

Alexander Zverev urges fans not to boo Novak Djokovic, who retired in the Australian Open Semifinals due to injury ...

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

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

Djokovic is out of the Australian Open after retiring from his semi-final, with Zverev through to face Sinner on Sunday ...

Alexander Zverev had a classy response to Novak Djokovic's medical retirement on Friday. Zverev won the first set of his ...

The 37-year-old Djokovic stopped his match against Alexander Zverev after dropping the opening set in a tiebreaker on Friday. After shaking hands with Zverev and the chair umpire, Djokovic ...

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

On Sunday, Alexander Zverev will chase his first Major title against Jannik Sinner in the Australian Open final. The German ...

Novak Djokovic and Alexander Zverev battled in the first Australian Open semi-final. The crowd at Rod Laver Arena only ...