China’s Yang takes first gold at uneasy Tokyo Olympics


              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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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)
            
              Kohei Uchimura, of Japan, falls from the horizontal bar during the men's artistic gymnastic qualifications at the 2020 Summer Olympics, Saturday, July 24, 2021, in Tokyo. (AP Photo/Gregory Bull)
            
              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)
            
              Yang Qian, of China, reacts after winning the gold medal in the women's 10-meter air rifle at the Asaka Shooting Range in the 2020 Summer Olympics, Saturday, July 24, 2021, in Tokyo, Japan. (AP Photo/Alex Brandon)
            
              The sand is empty during first women's beach volleyball match of the 2020 Summer Olympics between Japan and Czech Republic after it was canceled, Saturday, July 24, 2021, in Tokyo, Japan. The Czech team says beach volleyball player Markéta Sluková has entered a quarantine hotel after testing positive for COVID-19. (AP Photo/Felipe Dana)