China's Fan Zhendong competes during the table tennis men's singles quarterfinal match against South Korea's Jeoung Young-sik at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

China's Fan Zhendong competes during the table tennis men's singles quarterfinal match against South Korea's Jeoung Young-sik at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

China's Fan Zhendong and his coach gesture during the table tennis men's singles quarterfinal match against South Korea's Jeoung Young-sik at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

China's Fan Zhendong gestures during the table tennis men's singles quarterfinal match against South Korea's Jeoung Young-sik at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

South Korea's Jeoung Young-sik competes during the table tennis men's singles quarterfinal match against China's Fan Zhendong at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

South Korea's Jeoung Young-sik gestures during the table tennis men's singles quarterfinal match against China's Fan Zhendong at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

China's Fan Zhendong competes during the table tennis men's singles quarterfinal match against South Korea's Jeoung Young-sik at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

South Korea's Jeoung Young-sik gestures during the table tennis men's singles quarterfinal match against China's Fan Zhendong at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

China's Fan Zhendong serves during the table tennis men's singles quarterfinal match against South Korea's Jeoung Young-sik at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

China's Fan Zhendong gestures during the table tennis men's singles quarterfinal match against South Korea's Jeoung Young-sik at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

South Korea's Jeoung Young-sik reacts during the table tennis men's singles quarterfinal match against China's Fan Zhendong at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

China's Fan Zhendong serves during the table tennis men's singles quarterfinal match against South Korea's Jeoung Young-sik at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

China's Fan Zhendong competes during the table tennis men's singles quarterfinal match against South Korea's Jeoung Young-sik at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

China's Fan Zhendong gestures during the table tennis men's singles quarterfinal match against South Korea's Jeoung Young-sik at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

South Korea's Jeoung Young-sik gestures during the table tennis men's singles quarterfinal match against China's Fan Zhendong at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

China's Fan Zhendong gestures during the table tennis men's singles quarterfinal match against South Korea's Jeoung Young-sik at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

China's Fan Zhendong serves during the table tennis men's singles quarterfinal match against South Korea's Jeoung Young-sik at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Japan's Mima Ito competes during the table tennis women's singles quarterfinal match against South Korea's Jeon Ji-hee at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Japan's Mima Ito gestures during the table tennis women's singles quarterfinal match against South Korea's Jeon Ji-hee at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Japan's Mima Ito competes during the table tennis women's singles quarterfinal match against South Korea's Jeon Ji-hee at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Japan's Mima Ito competes during the table tennis women's singles quarterfinal match against South Korea's Jeon Ji-hee at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Japan's Mima Ito gestures during the table tennis women's singles quarterfinal match against South Korea's Jeon Ji-hee at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Japan's Mima Ito serves during the table tennis women's singles quarterfinal match against South Korea's Jeon Ji-hee at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

South Korea's Jeon Ji-hee competes during the table tennis women's singles quarterfinal match against Japan's Mima Ito at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Japan's Mima Ito reacts during the table tennis women's singles quarterfinal match against South Korea's Jeon Ji-hee at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

South Korea's Jeon Ji-hee competes during the table tennis women's singles quarterfinal match against Japan's Mima Ito at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Japan's Mima Ito competes during the table tennis women's singles quarterfinal match against South Korea's Jeon Ji-hee at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Slovenia's Jorgic Darko competes during the table tennis men's singles quarterfinal match against Taiwan's Lin Yun-Ju at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Slovenia's Jorgic Darko competes during the table tennis men's singles quarterfinal match against Taiwan's Lin Yun-Ju at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Taiwan's Lin Yun-Ju reacts during the table tennis men's singles quarterfinal match against Slovenia's Jorgic Darko at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Taiwan's Lin Yun-Ju competes during the table tennis men's singles quarterfinal match against Slovenia's Jorgic Darko at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Taiwan's Lin Yun-Ju reacts during the table tennis men's singles quarterfinal match against Slovenia's Jorgic Darko at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Taiwan's Lin Yun-Ju competes during the table tennis men's singles quarterfinal match against Slovenia's Jorgic Darko at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Taiwan's Lin Yun-Ju gestures during the table tennis men's singles quarterfinal match against Slovenia's Jorgic Darko at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

South Korea's Jeon Ji-hee competes during the table tennis women's singles quarterfinal match against Japan's Mima Ito at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

South Korea's Jeon Ji-hee gestures during the table tennis women's singles quarterfinal match against Japan's Mima Ito at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

South Korea's Jeon Ji-hee competes during the table tennis women's singles quarterfinal match against Japan's Mima Ito at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Taiwan's Lin Yun-Ju competes during the table tennis men's singles quarterfinal match against Slovenia's Jorgic Darko at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Taiwan's Lin Yun-Ju competes during the table tennis men's singles quarterfinal match against Slovenia's Jorgic Darko at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Slovenia's Jorgic Darko competes during the table tennis men's singles quarterfinal match against Taiwan's Lin Yun-Ju at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Japan's Mima Ito competes during the table tennis women's singles quarterfinal match against South Korea's Jeon Ji-hee at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Japan's Mima Ito celebrates after winning the table tennis women's singles quarterfinal match against South Korea's Jeon Ji-hee at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Japan's Mima Ito celebrates after winning the table tennis women's singles quarterfinal match against South Korea's Jeon Ji-hee at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Taiwan's Lin Yun-Ju competes during the table tennis men's singles quarterfinal match against Slovenia's Jorgic Darko at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Taiwan's Lin Yun-Ju competes during the table tennis men's singles quarterfinal match against Slovenia's Jorgic Darko at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Taiwan's Lin Yun-Ju reacts during the table tennis men's singles quarterfinal match against Slovenia's Jorgic Darko at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Slovenia's Jorgic Darko gestures after losing the table tennis men's singles quarterfinal match against Taiwan's Lin Yun-Ju at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

China's Sun Yingsha reacts during the table tennis women's singles quarterfinal match against Germany's Han Ying at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Germany's Han Ying competes during the table tennis women's singles quarterfinal match against China's Sun Yingsha at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

China's Sun Yingsha reacts during the table tennis women's singles quarterfinal match against Germany's Han Ying at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

China's Sun Yingsha competes during the table tennis women's singles quarterfinal match against Germany's Han Ying at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Germany's Han Ying reacts during the table tennis women's singles quarterfinal match against China's Sun Yingsha at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

China's Sun Yingsha gestures during the table tennis women's singles quarterfinal match against Germany's Han Ying at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Germany's Han Ying competes during the table tennis women's singles quarterfinal match against China's Sun Yingsha at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Japan's Mima Ito serves during the table tennis women's singles quarterfinal match against South Korea's Jeon Ji-hee at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Taiwan's Lin Yun-Ju competes during the table tennis men's singles quarterfinal match against Slovenia's Jorgic Darko at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

China's Sun Yingsha competes during the table tennis women's singles quarterfinal match against Germany's Han Ying at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)

Germany's Han Ying competes during the table tennis women's singles quarterfinal match against China's Sun Yingsha at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo. (AP Photo/Kin Cheung)