Defending champion Coco Gauff was defeated by Emma Navarro in the U.S. Open's fourth round. Gauff committed 19 double-faults and had just 14 winners, contributing to her 6-3, 4-6, 6-3 loss. Gauff acknowledged her serving issues and emphasized her need to overcome mental hurdles while Navarro advanced to face Paula Badosa in the quarterfinals.
