Coco Gauff has split from coach Brad Gilbert after more than a year and one Grand Slam title together. The pair announced the news via separate messages on social media on Wednesday. The end of their partnership comes 2 1/2 weeks after Gauff’s defense of her 2023 championship at the U.S. Open unraveled amid 19 double-faults during a three-set loss to Emma Navarro in the fourth round at Flushing Meadows. That was the latest in a series of disappointing-for-her results in recent months for Gauff, a 20-year-old American who recently dropped from No. 3 to No. 6 in the WTA rankings.