Coco Gauff rallies to reach the US Open semifinals against new women's No. 1 Elena Rybakina

Coco Gauff, of the United States, celebrates winning a match against Mirra Andreeva, of Russia, during the quarterfinal round of the U.S. Open tennis championships, Wednesday, Sept. 9, 2026, in New York. (AP Photo/Seth Wenig)

Qinwen Zheng, of China, returns the ball to Elena Rybakina, of Kazakhstan, during the quarterfinal round of the U.S. Open tennis championships, Wednesday, Sept. 9, 2026, in New York. (AP Photo/Seth Wenig)

Mirra Andreeva, of Russia, reacts during a match against Coco Gauff, of the United States, during the quarterfinal round of the U.S. Open tennis championships, Wednesday, Sept. 9, 2026, in New York. (AP Photo/Kirsty Wigglesworth)

Coco Gauff, of the United States, reacts during a match against Mirra Andreeva, of Russia, during the quarterfinal round of the U.S. Open tennis championships, Wednesday, Sept. 9, 2026, in New York. (AP Photo/Seth Wenig)

NEW YORK (AP) — Coco Gauff fought off a couple match points in a tiebreaker and beat Mirra Andreeva 2-6, 7-6 (7), 6-2 on Wednesday to set up a U.S. Open semifinal matchup against new No. 1 Elena Rybakina.