see more

BASEL, SWITZERLAND - AUGUST 20: Seo Seung Jae(R) and Chae Yujung of Korea compete in the Mixed Doubles second round match against Wang Chi-Lin and Cheng Chi Ya of Chinese Taipei during day two of the Total BWF World Championships at St. Jakobshalle on August 20, 2019 in Basel, Switzerland. (Photo by Shi Tang/Getty Images)

BASEL, SWITZERLAND - AUGUST 20: Seo Seung Jae(R) and Chae Yujung of Korea compete in the Mixed Doubles second round match against Wang Chi-Lin and Cheng Chi Ya of Chinese Taipei during day two of the Total BWF World Championships at St. Jakobshalle on August 20, 2019 in Basel, Switzerland. (Photo by Shi Tang/Getty Images)