Karolina Muchova, of the Czech Republic, reacts after defeating Beatriz Haddad Maia, of Brazil, during the quarterfinals of the U.S. Open tennis championships, Wednesday, Sept. 4, 2024, in New York. (AP Photo/Kirsty Wigglesworth)
Jannik Sinner, of Italy, pumps his fist after winning a point against Daniil Medvedev, of Russia, during the quarterfinals of the U.S. Open tennis championships, Wednesday, Sept. 4, 2024, in New York. (AP Photo/Adam Hunger)
Karolina Muchova, of the Czech Republic, reacts after defeating Beatriz Haddad Maia, of Brazil, during the quarterfinals of the U.S. Open tennis championships, Wednesday, Sept. 4, 2024, in New York. (AP Photo/Kirsty Wigglesworth)
Daniil Medvedev, of Russia, leaps over the player's bench on a return against Jannik Sinner, of Italy, during the quarterfinals of the U.S. Open tennis championships, Wednesday, Sept. 4, 2024, in New York. (AP Photo/Adam Hunger)
Olympic gold medalist Simone Biles waves during a break in a match between Jessica Pegula, of the United States, and Iga Świątek, of Poland, during the quarterfinals of the U.S. Open tennis championships, Wednesday, Sept. 4, 2024, in New York. (AP Photo/Eduardo Munoz Alvarez)
Jessica Pegula, of the United States, returns to Iga Świątek, of Poland, during the quarterfinals of the U.S. Open tennis championships, Wednesday, Sept. 4, 2024, in New York. (AP Photo/Eduardo Munoz Alvarez)
Jessica Pegula, of the United States, stretches for a return against Iga Świątek, of Poland, during the quarterfinals of the U.S. Open tennis championships, Wednesday, Sept. 4, 2024, in New York. (AP Photo/Eduardo Munoz Alvarez)
Jessica Pegula, of the United States, returns to Iga Świątek, of Poland, during the quarterfinals of the U.S. Open tennis championships, Wednesday, Sept. 4, 2024, in New York. (AP Photo/Eduardo Munoz Alvarez)
Jack Draper, of Great Britain, right, hugs Alex de Minaur, of Australia, after winning their quarterfinal match of the U.S. Open tennis championships, Wednesday, Sept. 4, 2024, in New York. (AP Photo/Pamela Smith)
Jessica Pegula, of the United States, reacts after defeating Iga Świątek, of Poland, during the quarterfinals of the U.S. Open tennis championships, Wednesday, Sept. 4, 2024, in New York. (AP Photo/Eduardo Munoz Alvarez)
Iga Świątek, of Poland, waves to the crowd after her loss to Jessica Pegula, of the United States, during the quarterfinals of the U.S. Open tennis championships, Wednesday, Sept. 4, 2024, in New York. (AP Photo/Eduardo Munoz Alvarez)
Iga Swiatek, of Poland, reaches out to hit a return to Jessica Pegula, of the United States, during the quarterfinals of the U.S. Open tennis tournament, Wednesday, Sept. 4, 2024, in New York. (AP Photo/Eduardo Munoz Alvarez)
Karolina Muchova, of the Czech Republic, returns a shot to Beatriz Haddad Maia, of Brazil, during the quarterfinals of the U.S. Open tennis championships, Wednesday, Sept. 4, 2024, in New York. (AP Photo/Pamela Smith)
Beatriz Haddad Maia, of Brazil, is checked by medical personnel during the second set against Karolina Muchova, of the Czech Republic, during the quarterfinals of the U.S. Open tennis championships, Wednesday, Sept. 4, 2024, in New York. (AP Photo/Kirsty Wigglesworth)
Beatriz Haddad Maia, of Brazil, is checked by medical personnel during the second set against Karolina Muchova, of the Czech Republic, during the quarterfinals of the U.S. Open tennis championships, Wednesday, Sept. 4, 2024, in New York. (AP Photo/Kirsty Wigglesworth)
Iga Świątek, of Poland, returns to Jessica Pegula, of the United States, during the quarterfinals of the U.S. Open tennis championships, Wednesday, Sept. 4, 2024, in New York. (AP Photo/Eduardo Munoz Alvarez)
Iga Świątek, of Poland, right, reacts after losing a point to Jessica Pegula, of the United States, left, during the quarterfinals of the U.S. Open tennis championships, Wednesday, Sept. 4, 2024, in New York. (AP Photo/Adam Hunger)
Jack Draper, of Great Britain, reacts after defeating Alex de Minaur, of Australia, during the quarterfinals of the U.S. Open tennis championships, Wednesday, Sept. 4, 2024, in New York. (AP Photo/Pamela Smith)
Jessica Pegula, of the United States, celebrates after defeating Iga Świątek, of Poland, during the quarterfinals of the U.S. Open tennis championships, Wednesday, Sept. 4, 2024, in New York. (AP Photo/Adam Hunger)
Iga Świątek, of Poland hits the net with her racquet after losing a point to Jessica Pegula, of the United States during the quarterfinals of the U.S. Open tennis championships, Wednesday, Sept. 4, 2024, in New York. (AP Photo/Adam Hunger)
Alex de Minaur, of Australia, returns a shot to Jack Draper, of Great Britain, during the quarterfinals of the U.S. Open tennis championships, Wednesday, Sept. 4, 2024, in New York. (AP Photo/Pamela Smith)
Jessica Pegula, of the United States, right, shakes hands after defeating Iga Świątek, of Poland, left, during the quarterfinals of the U.S. Open tennis championships, Wednesday, Sept. 4, 2024, in New York. (AP Photo/Adam Hunger)
Karolina Muchova, of the Czech Republic, waves to the crowd after defeating Beatriz Haddad Maia, of Brazil, during the quarterfinals of the U.S. Open tennis championships, Wednesday, Sept. 4, 2024, in New York. (AP Photo/Pamela Smith)
Jessica Pegula, of the United States, reacts after defeating Iga Świątek, of Poland, during the quarterfinals of the U.S. Open tennis championships, Wednesday, Sept. 4, 2024, in New York. (AP Photo/Eduardo Munoz Alvarez)