He Yun of China swims breaststroke during the mixed 4X100m medley relay final at the 2014 Nanjing Youth Olympic Games held in Nanjing, East China's Jiangsu Province on August 22. China won the final. Photos: Cui Meng/GT

Li Guangyuan of China performs backstroke during the 4X100m medley relay final on August 22.

Yu Hexin of China swims freestyle during the final.

Zhang Yufei of China swims with a butterfly stroke during the final.