Latvia's Anastasija Sevastova returns the ball to Italy's Jasmine Paolini during their match at the Italian Open tennis tournament, in Rome, Monday, Sept. 14, 2020. (Alfredo Falcone/LaPresse via AP)

Japan's Kei Nishikori gestures as he plays Spain's Albert Ramos-Vinolas during their match at the Italian Open tennis tournament in Rome, Monday Sept. 14, 2020. (Alfredo Falcone/LaPresse via AP)

Italy's Gianluca Mager returns the ball to Buglaria's Grigor Dimitrov during their match at the Italian Open tennis tournament, in Rome, Monday, Sept. 14, 2020. The tournament at the Foro Italico was rescheduled from May because of the pandemic and will be played without fans in attendance. (Alfredo Falcone/LaPresse via AP)

Buglaria's Grigor Dimitrov returns the ball to Italy's Gianluca Mager during their match at the Italian Open tennis tournament, in Rome, Monday, Sept. 14, 2020. (Alfredo Falcone/LaPresse via AP)

China's Zhang Shuai returns the ball to Russia's Anastasia Pavlyuchenkova during their match at the Italian Open tennis tournament, in Rome, Monday, Sept. 14, 2020. (Alfredo Falcone/LaPresse via AP)

Japan's Kei Nishikori returns to Spain's Albert Ramos-Vinolas during their match at the Italian Open tennis tournament in Rome, Monday Sept. 14, 2020. (Alfredo Falcone/LaPresse via AP)