It's the second time in the past four Grand Slams that Novak Djokovic needed to abandon his spot in the latter stages of the bracket.

But, regardless of how you feel about him or what you think about him bowing out, nobody — not even Novak Djokovic — deserves to be booed for being injured. You don’t have to like him. You can absolutely root against him. You can boo him when he’s healthy.

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

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, 6-2, in Sunday's final. Zverev is pursuing his first major tournament title.

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

Novak Djokovic is out of the Australian Open in stunning fashion. The 24-time slam champion medically retired immediately after dropping the first set of his semifinal match against No. 2 Alexander Zverev in a tiebreak 7-6 (5).

Novak Djokovic’s quest for a record 25th grand slam title has been cut short at the Australian Open after he stunningly retired from his semifinal match due to a left leg injury.

Novak Djokovic has retired from his Australian Open semifinal against Alexander Zverev after losing the first set in a tiebreak. Djokovic missed a regulation putaway volley on top of the net down 5-6,

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

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