It's men's final day at the US Open in Flushing Meadows New York.
Kei Nishikori, who knocked out top seed Novak Djokovic, takes on Marin Cilic, who beat Roger Federer in the last four.
Meanwhile Serena Williams claimed her 18th grand slam title last night after securing a comfortable victory in the final of the US Open.
She beat Caroline Wozniacki in straight sets, 6-3, 6-3.
