Elena Rybakina, of Kazakhstan, reacts during the women's singles final of the U.S. Open tennis championships against Aryna Sabalenka, of Belarus, Saturday, Sept. 12, 2026, in New York. (AP Photo/Yuki Iwamura)

Aryna Sabalenka, of Belarus, right, returns the ball to Elena Rybakina, of Kazakhstan, left, during the women's singles final of the U.S. Open tennis championships Saturday, Sept. 12, 2026, in New York. (AP Photo/Sydney Schaefer)

Aryna Sabalenka, of Belarus, reacts during the women's singles final of the U.S. Open tennis championships against Elena Rybakina, of Kazakhstan, Saturday, Sept. 12, 2026, in New York. (AP Photo/Yuki Iwamura)

Aryna Sabalenka, of Belarus, returns the ball to Elena Rybakina, of Kazakhstan, during the women's singles final of the U.S. Open tennis championships Saturday, Sept. 12, 2026, in New York. (AP Photo/Frank Franklin II)

Elena Rybakina, of Kazakhstan, serves the ball to Aryna Sabalenka, of Belarus, during the women's singles final of the U.S. Open tennis championships Saturday, Sept. 12, 2026, in New York. (AP Photo/Yuki Iwamura)

Elena Rybakina, of Kazakhstan, returns the ball to Coco Gauff, of the United States, during the women's singles semifinals of the U.S. Open tennis championships, Thursday, Sept. 10, 2026, in New York. (AP Photo/Seth Wenig)

Aryna Sabalenka, of Belarus, follows through on a shot to Jessica Pegula, of the United States, during the women's singles semifinals of the U.S. Open tennis championships Thursday, Sept. 10, 2026, in New York. (AP Photo/Kirsty Wigglesworth)

Elena Rybakina, of Kazakhstan, gestures after she won her match against Coco Gauff, of the United States, during the women's singles semifinals of the U.S. Open tennis championships Thursday, Sept. 10, 2026, in New York. (AP Photo/Frank Franklin II)