Japan's Okuhara Nozomi celebrates after the women's singles quarterfinal match against China's He Bingjiao at the BWF Badminton World Championships 2019 in Basel, Switzerland, Aug. 23, 2019. (Xinhua/Li Jundong)

China's He Bingjiao reacts during the women's singles quarterfinal match against Japan's Okuhara Nozomi at the BWF Badminton World Championships 2019 in Basel, Switzerland, Aug. 23, 2019. (Xinhua/Li Jundong)

China's He Bingjiao celebrates during the women's singles quarterfinal match against Japan's Okuhara Nozomi at the BWF Badminton World Championships 2019 in Basel, Switzerland, Aug. 23, 2019. (Xinhua/Li Jundong)

China's He Bingjiao returns the shuttle during the women's singles quarterfinal match against Japan's Okuhara Nozomi at the BWF Badminton World Championships 2019 in Basel, Switzerland, Aug. 23, 2019. (Xinhua/Li Jundong)

Japan's Okuhara Nozomi celebrates after the women's singles quarterfinal match against China's He Bingjiao at the BWF Badminton World Championships 2019 in Basel, Switzerland, Aug. 23, 2019. (Xinhua/Li Jundong)

Japan's Okuhara Nozomi returns the shuttle during the women's singles quarterfinal match against China's He Bingjiao at the BWF Badminton World Championships 2019 in Basel, Switzerland, Aug. 23, 2019. (Xinhua/Li Jundong)

China's He Bingjiao gestures during the women's singles quarterfinal match against Japan's Okuhara Nozomi at the BWF Badminton World Championships 2019 in Basel, Switzerland, Aug. 23, 2019. (Xinhua/Li Jundong)

Japan's Okuhara Nozomi returns the shuttle during the women's singles quarterfinal match against China's He Bingjiao at the BWF Badminton World Championships 2019 in Basel, Switzerland, Aug. 23, 2019. (Xinhua/Li Jundong)

China's He Bingjiao reacts during the women's singles quarterfinal match against Japan's Okuhara Nozomi at the BWF Badminton World Championships 2019 in Basel, Switzerland, Aug. 23, 2019. (Xinhua/Li Jundong)

Japan's Okuhara Nozomi returns the shuttle during the women's singles quarterfinal match against China's He Bingjiao at the BWF Badminton World Championships 2019 in Basel, Switzerland, Aug. 23, 2019. (Xinhua/Li Jundong)

China's He Bingjiao returns the shuttle during the women's singles quarterfinal match against Japan's Okuhara Nozomi at the BWF Badminton World Championships 2019 in Basel, Switzerland, Aug. 23, 2019. (Xinhua/Li Jundong)

China's He Bingjiao receives medical treatment during the women's singles quarterfinal match against Japan's Okuhara Nozomi at the BWF Badminton World Championships 2019 in Basel, Switzerland, Aug. 23, 2019. (Xinhua/Li Jundong)

China's He Bingjiao returns the shuttle during the women's singles quarterfinal match against Japan's Okuhara Nozomi at the BWF Badminton World Championships 2019 in Basel, Switzerland, Aug. 23, 2019. (Xinhua/Li Jundong)