Novak Djokovic, of Serbia, returns a shot to Daniil Medvedev, of Russia, during the men’s singles final of the U.S. Open tennis championships, Sunday, Sept. 10, 2023, in New York. (AP Photo/Manu Fernandez)
Novak Djokovic, of Serbia, moves to check on Daniil Medvedev, of Russia, who laid on the court after a rally during the men’s singles final of the U.S. Open tennis championships, Sunday, Sept. 10, 2023, in New York. (AP Photo/Mary Altaffer)
Novak Djokovic, of Serbia, returns a shot to Daniil Medvedev, of Russia, during the men’s singles final of the U.S. Open tennis championships, Sunday, Sept. 10, 2023, in New York. (AP Photo/Frank Franklin II)Novak Djokovic, of Serbia, returns a shot to Daniil Medvedev, of Russia, during the men’s singles final of the U.S. Open tennis championships, Sunday, Sept. 10, 2023, in New York. (AP Photo/Manu Fernandez)Daniil Medvedev, of Russia, returns a shot to Novak Djokovic, of Serbia, during the men’s singles final of the U.S. Open tennis championships, Sunday, Sept. 10, 2023, in New York. (AP Photo/Frank Franklin II)Novak Djokovic, of Serbia, returns a shot to Daniil Medvedev, of Russia, during the men’s singles final of the U.S. Open tennis championships, Sunday, Sept. 10, 2023, in New York. (AP Photo/Manu Fernandez)Novak Djokovic, of Serbia, returns a shot to Daniil Medvedev, of Russia, during the men’s singles final of the U.S. Open tennis championships, Sunday, Sept. 10, 2023, in New York. (AP Photo/Charles Krupa)Novak Djokovic, of Serbia, returns a shot to Daniil Medvedev, of Russia, during the men’s singles final of the U.S. Open tennis championships, Sunday, Sept. 10, 2023, in New York. (AP Photo/Manu Fernandez)Novak Djokovic, of Serbia, reacts after defeating Daniil Medvedev, of Russia, in the men’s singles final of the U.S. Open tennis championships, Sunday, Sept. 10, 2023, in New York. (AP Photo/Frank Franklin II)Novak Djokovic, of Serbia, reacts after defeating Daniil Medvedev, of Russia, in the men’s singles final of the U.S. Open tennis championships, Sunday, Sept. 10, 2023, in New York. (AP Photo/Frank Franklin II)Novak Djokovic, of Serbia, reacts after defeating Daniil Medvedev, of Russia, in the men’s singles final of the U.S. Open tennis championships, Sunday, Sept. 10, 2023, in New York. (AP Photo/Mary Altaffer)Novak Djokovic, of Serbia, tosses his racket after defeating Daniil Medvedev, of Russia, in the men’s singles final of the U.S. Open tennis championships, Sunday, Sept. 10, 2023, in New York. (AP Photo/Charles Krupa)Novak Djokovic, of Serbia, kisses the championship trophy after defeating Daniil Medvedev, of Russia, in the men’s singles final of the U.S. Open tennis championships, Sunday, Sept. 10, 2023, in New York. (AP Photo/Manu Fernandez)Novak Djokovic, of Serbia, holds up the championship trophy after defeating Daniil Medvedev, of Russia, in the men’s singles final of the U.S. Open tennis championships, Sunday, Sept. 10, 2023, in New York. (AP Photo/Manu Fernandez)Daniil Medvedev, of Russia, left, holds up the runner-up trophy as Novak Djokovic, of Serbia, holds up the championship trophy after the men’s singles final of the U.S. Open tennis championships, Sunday, Sept. 10, 2023, in New York. (AP Photo/Manu Fernandez)