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

By Shrivathsa Sridhar MELBOURNE (Reuters) -Novak Djokovic retired injured after losing the opening set of his clash with Alexander Zverev on Friday, sending the German to a first Australian Open final where he will take on defending champion Jannik Sinner for a maiden Grand Slam title.

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).

The Madison Keys who will play two-time defending champion Aryna Sabalenka for the title at the Australian Open on Saturday night is not the same Madison Keys who was the runner-up at the U.S.

Madison Keys stunned second seed Iga Swiatek 5-7 6-1 7-6(8) in a thriller on Thursday to reach her first Australian Open final. American Keys, the 19th seed, will meet double defending champion Aryna Sabalenka in Saturday's decider.

Australian Open comes to an end this weekend with Aryna Sabalenka facing Madison Keys in the women's final. Sabalenka is the world No. 1, top-seeded player of the tournament and two-time defending champion of the Australian Open.