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China's Huang Yaqiong (R) and Zheng Siwei (L) returns to Malaysia's Lai Pei Jing and Tan Kian Meng during their mixed doubles match of the 2019 Sudirman Cup world badminton championships in Nanning in China's southern Guangxi region on May 19, 2019. (Photo by WANG ZHAO / AFP) (Photo credit should read WANG ZHAO/AFP via Getty Images)

China's Huang Yaqiong (R) and Zheng Siwei (L) returns to Malaysia's Lai Pei Jing and Tan Kian Meng during their mixed doubles match of the 2019 Sudirman Cup world badminton championships in Nanning in China's southern Guangxi region on May 19, 2019. (Photo by WANG ZHAO / AFP)        (Photo credit should read WANG ZHAO/AFP via Getty Images)

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NANNING, CHINA - MAY 19: Shi Yuqi of China competes in the Men's Single match against Lee Zii Jia of Malaysia during day one of the Sudirman Cup at Guangxi Sports Center on May 19, 2019 in Nanning, China. (Photo by Shi Tang/Getty Images)

NANNING, CHINA - MAY 19:  Shi Yuqi of China competes in the Men's Single match against Lee Zii Jia of Malaysia during day one of the Sudirman Cup at Guangxi Sports Center on May 19, 2019 in Nanning, China.  (Photo by Shi Tang/Getty Images)

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NANNING, CHINA - MAY 19: Li Yinhui(L) and Du Yue of China compete in the Women's Doubles match against Vivian Hoo and Yap Cheng Wen of Malaysia during day one of the Sudirman Cup at Guangxi Sports Center on May 19, 2019 in Nanning, China. (Photo by Shi Tang/Getty Images)

NANNING, CHINA - MAY 19:  Li Yinhui(L) and Du Yue of China compete in the Women's Doubles match against Vivian Hoo and Yap Cheng Wen of Malaysia during day one of the Sudirman Cup at Guangxi Sports Center on May 19, 2019 in Nanning, China.  (Photo by Shi Tang/Getty Images)