Liam Broady, of Britain, serves to Hubert Hurkacz, of Poland, during the second round of the men's tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)

Hubert Hurkacz, of Poland, leaps as he serves to Liam Broady, of Britain, during the second round of the men's tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)

Liam Broady, of Britain, serves to Hubert Hurkacz, of Poland, during the second round of the men's tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)

Liam Broady, of Britain, reacts during a second round men's tennis match against Hubert Hurkacz, of Poland, at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)

Liam Broady, of Britain, serves to Hubert Hurkacz, of Poland, during the second round of the men's tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)

Hubert Hurkacz, of Poland, returns to Liam Broady, of Britain, during the second round of the men's tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)

Hubert Hurkacz, of Poland, returns to Liam Broady, of Britain, during the second round of the men's tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)

Hubert Hurkacz, of Poland, serves to Liam Broady, of Britain, during the second round of the men's tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)

Liam Broady, of Britain, serves to Hubert Hurkacz, of Poland, during the second round of the men's tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)

Liam Broady, of Britain, serves to Hubert Hurkacz, of Poland, during the second round of the men's tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)

Hubert Hurkacz, of Poland, returns to Liam Broady, of Britain, during the second round of the men's tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)

Liam Broady, of Britain, serves to Hubert Hurkacz, of Poland, during the second round of the men's tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)

Liam Broady, of Britain, prepares to serve to Hubert Hurkacz, of Poland, during the second round of the men's tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)

Liam Broady, of Britain, prepares to serve to Hubert Hurkacz, of Poland, during the second round of the men's tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)

Liam Broady, of Britain, retrieves a ball before serving to Hubert Hurkacz, of Poland, during the second round of the men's tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)

Liam Broady, of Britain, returns to Hubert Hurkacz, of Poland, during the second round of the men's tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)

Liam Broady, of Britain, serves to Hubert Hurkacz, of Poland, during the second round of the men's tennis competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)