Li Junhui(Top, L) and Liu Yuchen ( Top, R) of China greet Liu Cheng(1st L) and Zhang Nan of China after their men's doubles semifinal match at the BWF (Badminton World Federation) World Championships 2018 in Nanjing, capital of east China's Jiangsu Province, Aug. 4, 2018. Li and Liu won 2-0. (Xinhua/Ji Chunpeng)