Coco Gauff tells coach Brad Gilbert to stop talking during her US Open win over Caroline Wozniacki

NEW YORK (AP) — Coco Gauff has become the first American teenager since Serena Williams more than two decades ago to reach the U.S. Open quarterfinals in consecutive years. She got that far this time by beating Caroline Wozniacki 6-3, 3-6, 6-1 on Sunday. Gauff asked one of her coaches to stop talking to her as the second set slipped away. She wound up winning the last six games. Gauff is 19. Wozniacki is a 33-year-old mother of two and was playing in just her third tournament since coming out of retirement last month. It was the hottest day of the event so far, with the temperature reaching 90 degrees Fahrenheit (32 Celsius).