Olympic Tournament Men Singles
Daniil Medvedev, of the Russian Olympic Committee, serves to Alexander Bublik, of Kazakhstan, during the tennis competition at the 2020 Summer Olympics, Saturday, July 24, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)
Daniil Medvedev, bottom, of the Russian Olympic Committee, serves to Alexander Bublik, of Kazakhstan, during the tennis competition at the 2020 Summer Olympics, Saturday, July 24, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)
Daniil Medvedev, of the Russian Olympic Committee, serves to Alexander Bublik, of Kazakhstan, during the tennis competition at the 2020 Summer Olympics, Saturday, July 24, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)
Daniil Medvedev, of the Russian Olympic Committee, cools off during a changeover in a tennis match against Alexander Bublik, of Kazakhstan, during at the 2020 Summer Olympics, Saturday, July 24, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)
Daniil Medvedev, of the Russian Olympic Committee, serves to Alexander Bublik, of Kazakhstan, during the tennis competition at the 2020 Summer Olympics, Saturday, July 24, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)
Daniil Medvedev, of the Russian Olympic Committee, serves to Alexander Bublik, of Kazakhstan, during the tennis competition at the 2020 Summer Olympics, Saturday, July 24, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)
Daniil Medvedev, of the Russian Olympic Committee, returns to Alexander Bublik, of Kazakhstan, during the tennis competition at the 2020 Summer Olympics, Saturday, July 24, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)
Daniil Medvedev, of the Russian Olympic Committee, returns to Alexander Bublik, of Kazakhstan, during the tennis competition at the 2020 Summer Olympics, Saturday, July 24, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)
Daniil Medvedev, bottom, of the Russian Olympic Committee, serves to Alexander Bublik, of Kazakhstan, during the tennis competition at the 2020 Summer Olympics, Saturday, July 24, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)
Daniil Medvedev, of the Russian Olympic Committee, prepares to serve to Alexander Bublik, of Kazakhstan, during the tennis competition at the 2020 Summer Olympics, Saturday, July 24, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)