Khosit Phetpradab of Thailand returns a shot to Lu Guangzu of China during the men's singles quarterfinal match at the U.S. Open Badminton Championships in Los Angeles, the United States on June 15, 2018. Phetpradab won 2-1. (Xinhua/Zhao Hanrong)

Khosit Phetpradab of Thailand celebrates after defeating Lu Guangzu of China during the men's singles quarterfinal match at the U.S. Open Badminton Championships in Los Angeles, the United States on June 15, 2018. Khosit Phetpradab won 2-1. (Xinhua/Zhao Hanrong)

Michelle Li of Canada returns to Gao Fangjie of China during the women's singles quarterfinal match at the U.S. Open Badminton Championships in Los Angeles, the United States on June 15, 2018. Li won 2-0.(Xinhua/Zhao Hanrong)

Michelle Li of Canada celebrates after defeating Gao Fangjie of China during the women's singles quarterfinal match at the U.S. Open Badminton Championships in Los Angeles, the United States on June 15, 2018. Li won 2-0. (Xinhua/Zhao Hanrong)

Gao Fangjie (Top) of China returns to Michelle Li of Canada during the women's singles quarterfinal match at the U.S. Open Badminton Championships in Los Angeles, the United States on June 15, 2018. Li won 2-0.(Xinhua/Zhao Hanrong)

Gao Fangjie of China returns a shot to Michelle Li of Canada during the women's singles quarter final match at the U.S. Open Badminton Championships in Los Angeles, the United States on June 15, 2018. Li won 2-0. (Xinhua/Zhao Hanrong)

Li Xuerui of China returns a shot to Kim Hyo Min of Korea during the women's singles quarterfinal match at the U.S. Open Badminton Championships in Los Angeles, the United States on June 15, 2018. Li won 2-0. (Xinhua/Zhao Hanrong)

Tang Jinhua (L) and Yu Xiaohan of China compete with Supissara Paewsampran and Puttita Supajirakul of Thailand during the women's doubles quarterfinal match at the U.S. Open Badminton Championships in Los Angeles, the United States on June 15, 2018. Tang and Yu won 2-0. (Xinhua/Zhao Hanrong)

Tang Jinhua (R) and Yu Xiaohan of China compete with Supissara Paewsampran and Puttita Supajirakul of Thailand during the women's doubles quarterfinal match at the U.S. Open Badminton Championships in Los Angeles, the United States on June 15, 2018. Tang and Yu won 2-0.(Xinhua/Zhao Hanrong)

Lu Guangzu of China returns a shot to Khosit Phetpradab of Thailand during the men's singles quarterfinal match at the U.S. Open Badminton Championships in Los Angeles, the United States on June 15, 2018. Phetpradab won 2-1. (Xinhua/Zhao Hanrong)