The first question for any opponent of Novak Djokovic at this United States Open is obvious enough: Do you actually intend to play a full, best-of-five-set match against the defending champion?
Kyle Edmund insists he will endure on Sunday. His knees, his ankles and his wrists are all young and prepared for the challenge, and he pledges not to become the third successive challenger to withdraw or retire against Djokovic, the top seed in the men’s draw.