The 24-time Grand Slam champion Novak Djokovic appeared subdued in the early stages of his US Open match before powering through to a 6-7 (5-7) 6-3 6-3 6-1 win against qualifier Zachary Svajda. Meanwhile, fourth-seeded Taylor Fritz lost his first set against Lloyd Harris before powering back to set up a match with Jérôme Kym.