NEW YORK—Novak Djokovic did not go easy on himself when assessing the listless way he performed from the start of the U.S. Open, pointing to his sloppy serving as the main reason the defense of his 2023 title surprisingly ended in the third round.
“I have played some of the worst tennis I have ever played, honestly,” Djokovic said, just after midnight as Friday turned to Saturday. “Serving—by far—the worst ever.”