Carolina Marin of Spain celebrates during the women's singles semifinal match against He Bingjiao of China at the BWF (Badminton World Federation) World Championships 2018 in Nanjing, capital of east China's Jiangsu Province, Aug. 4, 2018. Carolina Marin won 2-1. (Xinhua/Li Xiang)

He Bingjiao of China returns the shuttlecock during the women's singles semifinal match against Carolina Marin of Spain at the BWF (Badminton World Federation) World Championships 2018 in Nanjing, capital of east China's Jiangsu Province, Aug. 4, 2018. He Bingjiao lost 1-2. (Xinhua/Ji Chunpeng)

Carolina Marin of Spain celebrates during the women's singles semifinal match against He Bingjiao of China at the BWF (Badminton World Federation) World Championships 2018 in Nanjing, capital of east China's Jiangsu Province, Aug. 4, 2018. Carolina Marin won 2-1. (Xinhua/Ji Chunpeng)