Gold medalists Huang Yaqiong/Zheng Siwei (R) of China pose during the awarding ceremony after the mixed doubles's final at China Open 2019 badminton tournament in Changzhou, east China's Jiangsu Province, Sept. 22, 2019. (Xinhua/Yang Lei)

Wang Yilyu /Huang Dongping (R) of China competes during the mixed doubles's final between Huang Yaqiong/Zheng Siwei of China and Wang Yilyu/Huang Dongping of China at China Open 2019 badminton tournament in Changzhou, east China's Jiangsu Province, Sept. 22, 2019. (Xinhua/Yang Lei)

Gold medalists Huang Yaqiong (2nd R)/Zheng Siwei (1st R) of China and silver medalists Wang Yilyu(1st L)/Huang Dongping of China pose during the awarding ceremony after the mixed doubles's final at China Open 2019 badminton tournament in Changzhou, east China's Jiangsu Province, Sept. 22, 2019. (Xinhua/Yang Lei)

Wang Yilyu (R)/Huang Dongping of China competes during the mixed doubles's final between Huang Yaqiong/Zheng Siwei of China and Wang Yilyu/Huang Dongping of China at China Open 2019 badminton tournament in Changzhou, east China's Jiangsu Province, Sept. 22, 2019. (Xinhua/Yang Lei)