Alison van Uytvanck, of Belgium, plays Petra Kvitova, of the Czech Republic, during the second round of the tennis competition at the 2020 Summer Olympics, Monday, July 26, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Petra Kvitova, of the Czech Republic, plays Alison van Uytvanck, during the second round of the tennis competition at the 2020 Summer Olympics, Monday, July 26, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Alison van Uytvanck, of Belgium, plays Petra Kvitova, of the Czech Republic, during the second round of the tennis competition at the 2020 Summer Olympics, Monday, July 26, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Alison van Uytvanck, of Belgium, reacts after defeating Petra Kvitova, of the Czech Republic, during the second round of the tennis competition at the 2020 Summer Olympics, Monday, July 26, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Petra Kvitova, of the Czech Republic, tries to wipe the sweat off her hands while playing Alison van Uytvanck, of Belgium, during the second round of the tennis competition at the 2020 Summer Olympics, Monday, July 26, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)