China's Ma Long competes during the table tennis men's singles quarterfinal match against Egypt's Omar Assarat at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

China's Ma Long competes during the table tennis men's singles quarterfinal match against Egypt's Omar Assarat at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Egypt's Omar Assar gestures during the table tennis men's singles quarterfinal match against China's Ma Long at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Egypt's Omar Assar reacts during the table tennis men's singles quarterfinal match against China's Ma Long at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

China's Ma Long competes during the table tennis men's singles quarterfinal match against Egypt's Omar Assarat at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

China's Ma Long competes during the table tennis men's singles quarterfinal match against Egypt's Omar Assarat at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Germany's Dimitrij Ovtcharov reacts during the table tennis men's singles quarterfinal match against Brazil's Hugo Calderano at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Brazil's Hugo Calderano competes during the table tennis men's singles quarterfinal match against Germany's Dimitrij Ovtcharov at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Brazil's Hugo Calderano competes during the table tennis men's singles quarterfinal match against Germany's Dimitrij Ovtcharov at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Germany's Dimitrij Ovtcharov competes during the table tennis men's singles quarterfinal match against Brazil's Hugo Calderano at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Brazil's Hugo Calderano competes during the table tennis men's singles quarterfinal match against Germany's Dimitrij Ovtcharov at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Brazil's Hugo Calderano reacts during the table tennis men's singles quarterfinal match against Germany's Dimitrij Ovtcharov at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)