Nagahara Wakana (R)/Matsumoto Mayu of Japan compete during the women's doubles second round match between Nagahara Wakana/Matsumoto Mayu of Japan and Chang Ye Na/Kim Hye Rin of South Korea at China Open 2019 badminton tournament in Changzhou, east China's Jiangsu Province, Sept. 19, 2019. (Xinhua/Li Bo)