Roger Federer has admitted that he is relishing the challenge of facing world number one Novak Djokovic in the final of the US Open.
"[Djokovic has] had a tremendous year," Federer told ESPN. "There's a lot on the line when we play each other. He's tough to beat. I like that challenge, and I'll be ready for it."
Federer will be bidding to win the competition for the sixth time in his career.