Italian tennis player Simone Bolelli, left, and Argentina's Maximo Gonzalez are escorted to their training session in Melbourne, Australia, Monday, Jan. 18, 2021. (Luis A...

Jennifer Brady, of the United States, serves to Angelique Kerber, of Germany, during the fourth round of the US Open tennis championships, Sunday, Sept. 6, 2020, in New Y...

Naomi Osaka, of Japan, serves to Marta Kostyuk, of the Ukraine, during the third round of the US Open tennis championships, Friday, Sept. 4, 2020, in New York. Another pa...