Novak Djokovic, of Serbia, reacts after scoring a point against Carlos Alcaraz, of Spain, during the men's singles semifinals of the U.S. Open tennis championships, Friday, Sept. 5, 2025, in New York. (AP Photo/Kirsty Wigglesworth)
Aryna Sabalenka, of Belarus, returns a shot to Jessica Pegula, of the United States, during the women's singles semifinals of the U.S. Open tennis championships, Thursday, Sept. 4, 2025, in New York. (AP Photo/Frank Franklin)
Carlos Alcaraz, of Spain, returns a shot to Novak Djokovic, of Serbia, during the men's singles semifinals of the U.S. Open tennis championships, Friday, Sept. 5, 2025, in New York. (AP Photo/Kirsty Wigglesworth)
Jessica Pegula, of the United States, returns a shot to Aryna Sabalenka, of Belarus, during the women's singles semifinals of the U.S. Open tennis championships, Thursday, Sept. 4, 2025, in New York. (AP Photo/Seth Wenig)
Aryna Sabalenka, of Belarus, reacts after defeating Jessica Pegula, of the United States, during the women's singles semifinals of the U.S. Open tennis championships, Thursday, Sept. 4, 2025, in New York. (AP Photo/Kirsty Wigglesworth)
Carlos Alcaraz, of Spain, can't get to a shot by Novak Djokovic, of Serbia, during the men's singles semifinals of the U.S. Open tennis championships, Friday, Sept. 5, 2025, in New York. (AP Photo/Seth Wenig)
Carlos Alcaraz, of Spain, reacts after winning a game against Novak Djokovic, of Serbia, during the men's singles semifinals of the U.S. Open tennis championships, Friday, Sept. 5, 2025, in New York. (AP Photo/Kirsty Wigglesworth)
Carlos Alcaraz, of Spain, returns a shot to Novak Djokovic, of Serbia, during the men's singles semifinals of the U.S. Open tennis championships, Friday, Sept. 5, 2025, in New York. (AP Photo/Yuki Iwamura)
Novak Djokovic, of Serbia, returns a shot to Carlos Alcaraz, of Spain, during the men's singles semifinals of the U.S. Open tennis championships, Friday, Sept. 5, 2025, in New York. (AP Photo/Yuki Iwamura)
Athletic trainer Clay Sniteman works on Novak Djokovic, of Serbia, between sets against Carlos Alcaraz, of Spain, during the men's singles semifinals of the U.S. Open tennis championships, Friday, Sept. 5, 2025, in New York. (AP Photo/Kirsty Wigglesworth)
Novak Djokovic, of Serbia, reacts after scoring a point against Carlos Alcaraz, of Spain, during the men's singles semifinals of the U.S. Open tennis championships, Friday, Sept. 5, 2025, in New York. (AP Photo/Kirsty Wigglesworth)
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Aryna Sabalenka, of Belarus, returns a shot to Jessica Pegula, of the United States, during the women's singles semifinals of the U.S. Open tennis championships, Thursday, Sept. 4, 2025, in New York. (AP Photo/Frank Franklin)
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Carlos Alcaraz, of Spain, returns a shot to Novak Djokovic, of Serbia, during the men's singles semifinals of the U.S. Open tennis championships, Friday, Sept. 5, 2025, in New York. (AP Photo/Kirsty Wigglesworth)
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Jessica Pegula, of the United States, returns a shot to Aryna Sabalenka, of Belarus, during the women's singles semifinals of the U.S. Open tennis championships, Thursday, Sept. 4, 2025, in New York. (AP Photo/Seth Wenig)
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Aryna Sabalenka, of Belarus, reacts after defeating Jessica Pegula, of the United States, during the women's singles semifinals of the U.S. Open tennis championships, Thursday, Sept. 4, 2025, in New York. (AP Photo/Kirsty Wigglesworth)
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Carlos Alcaraz, of Spain, can't get to a shot by Novak Djokovic, of Serbia, during the men's singles semifinals of the U.S. Open tennis championships, Friday, Sept. 5, 2025, in New York. (AP Photo/Seth Wenig)
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Carlos Alcaraz, of Spain, reacts after winning a game against Novak Djokovic, of Serbia, during the men's singles semifinals of the U.S. Open tennis championships, Friday, Sept. 5, 2025, in New York. (AP Photo/Kirsty Wigglesworth)
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Carlos Alcaraz, of Spain, returns a shot to Novak Djokovic, of Serbia, during the men's singles semifinals of the U.S. Open tennis championships, Friday, Sept. 5, 2025, in New York. (AP Photo/Yuki Iwamura)
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Novak Djokovic, of Serbia, returns a shot to Carlos Alcaraz, of Spain, during the men's singles semifinals of the U.S. Open tennis championships, Friday, Sept. 5, 2025, in New York. (AP Photo/Yuki Iwamura)
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Athletic trainer Clay Sniteman works on Novak Djokovic, of Serbia, between sets against Carlos Alcaraz, of Spain, during the men's singles semifinals of the U.S. Open tennis championships, Friday, Sept. 5, 2025, in New York. (AP Photo/Kirsty Wigglesworth)