Emma Raducanu, of Great Britain, waves to the crowd after defeating Maria Sakkari, of Greece, during the semifinals of the US Open tennis championships, Thursday, Sept. 9, 2021, in New York. (AP Photo/Frank Franklin II)

Emma Raducanu, of Great Britain, returns a shot to Maria Sakkari, of Greece, during the semifinals of the US Open tennis championships, Thursday, Sept. 9, 2021, in New York. (AP Photo/Elise Amendola)