Stan Wawrinka will face Novak Djokovic in the US Open final

Stan Wawrinka of Switzerland reacts after winning a set against Japanu00c3u0083u00c2u00a2u00c3u0082u00c2u0080u00c3u0082u00c2u0099s Kei Nishikori during the semi-final on Saturday. Pics/AFP and Nishikori reacts after his loss

Stan Wawrinka of Switzerland reacts after winning a set against Japan's Kei Nishikori during the semi-final on Saturday. Pics/AFP and Nishikori reacts after his loss

New York: Stan Wawrinka will face Novak Djokovic in the US Open final after the Swiss came from behind to beat Japan's Kei Nishikori.

Wawrinka dropped the opening set in a hot and humid Arthur Ashe Stadium but the world number three battled back to win 4-6, 7-5, 6-4, 6-2 and reach his third Grand Slam final.

He will now meet defending champion Djokovic on Sunday in a repeat of the 2015 French Open, when Wawrinka stunned the Serb to clinch his second major title.

Roger Federer was beaten by Djokovic in the final here 12 months ago but with the 17-time grand slam champion injured and absent from Flushing Meadows, it is another Swiss now hoping to get his hands on the trophy.

"I'm happy, it was an amazing atmosphere and to tell myself I'm going to be in the final is just crazy," Wawrinka said.

Wawrinka's triumph at Roland Garros was the only time Djokovic has lost a major final in his last seven appearances at that stage and the 31-year-old may need a performance of similar magnitude if he is to manage a repeat.