Naomi Osaka, of Japan, plays Marketa Vondrousova, of the Czech Republic, during the third round of the tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Marketa Vondrousova, of the Czech Republic, plays Naomi Osaka, of Japan, during the third round of the tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Naomi Osaka, of Japan, reacts after losing a point to Marketa Vondrousova, of the Czech Republic, during the third round of the tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Naomi Osaka, of Japan, plays Marketa Vondrousova, of the Czech Republic, during the third round of the tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Marketa Vondrousova, of the Czech Republic, plays Naomi Osaka, of Japan, during the third round of the tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Marketa Vondrousova, of the Czech Republic, reacts after defeating Naomi Osaka, of Japan, during the third round of the tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Naomi Osaka, of Japan, reacts after losing a point to Marketa Vondrousova, of the Czech Republic, during the third round of the tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Marketa Vondrousova, of the Czech Republic, reacts after winning a point off Naomi Osaka, of Japan, during the third round of the tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Naomi Osaka, of Japan, plays Marketa Vondrousova, of the Czech Republic, during the third round of the tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Marketa Vondrousova, of the Czech Republic, reacts after defeating Naomi Osaka, of Japan, during the third round of the tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Naomi Osaka, of Japan, reacts after her ball hit the net while playing to Marketa Vondrousova, of the Czech Republic, during the third round of the tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Marketa Vondrousova, of the Czech Republic, reacts after defeating Naomi Osaka, of Japan, during the third round of the tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Naomi Osaka, of Japan, reaches for a shot by Marketa Vondrousova, of the Czech Republic, during the third round of the tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Naomi Osaka, of Japan, enters the court before her match against Marketa Vondrousova, of the Czech Republic, during the third round of the tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Naomi Osaka, of Japan, plays Marketa Vondrousova, of the Czech Republic, during the third round of the tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Naomi Osaka, of Japan, leaves center court after being defeated by Marketa Vondrousova, of the Czech Republic, during the third round of the tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Marketa Vondrousova, of the Czech Republic, plays Naomi Osaka, of Japan, during the third round of the tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Naomi Osaka, of Japan, plays Marketa Vondrousova, of the Czech Republic, during the third round of the tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Naomi Osaka, of Japan, reacts after losing a point to Marketa Vondrousova, of the Czech Republic, during the third round of the tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Naomi Osaka, of Japan, plays Marketa Vondrousova, of the Czech Republic, during the third round of the tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Naomi Osaka, of Japan, reacts during a third round women's tennis match against Marketa Vondrousova, of the Czech Republic, at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)

Naomi Osaka, of Japan, reacts after losing a point to Marketa Vondrousova, of the Czech Republic, during the third round of the tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

FILE - In this July 27, 2021 file photo, Naomi Osaka, of Japan, reaches for a shot by Marketa Vondrousova, of the Czech Republic, during the third round of the tennis competition at the 2020 Summer Olympics, in Tokyo, Japan. Osaka and Simone Biles are prominent young Black women under the pressure of a global Olympic spotlight that few human beings ever face. But being a young Black woman -- which, in American life, comes with its own built-in pressure to perform -- entails much more than meets the eye. (AP Photo/Seth Wenig, File)

FILE - Naomi Osaka, of Japan, plays Marketa Vondrousova, of the Czech Republic, during the third round of the tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. Osaka’s 2021 experiences, and how she talked about them, helped drive a robust conversation about athletes’ emotional health. (AP Photo/Seth Wenig, File)