Novak Djokovic dropped the first set and struggled to find his rhythm throughout, but still managed to survive his second-round U.S. Open match against qualifier Zachary Svajda on Wednesday in New York.

After committing 14 unforced errors in losing an hour-long first set, the 38-year-old managed to take the last three sets from the American Svajda, who appeared to be struggling with cramps in the second half of the match, requesting the trainer multiple times during changeovers.

"Kudos to him for staying on the court," Djokovic said after the match.

The seventh-seeded Djokovic was able to take advantage of Svajda's physical struggles, winning eight straight games to take a 3-0 lead in the fourth set before finishing off Svajda with a final score of 6-7 (5), 6-3, 6-3, 6-1.

The win gives

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