Xuan Dajun (R) of China corsses the finish line during the final of men's 4x100 at the 30th Summer Universiade in Naples, Italy, on July 13, 2019. Jiang Jiehua, Jiang Hengnan, Wang Yu and Xuan Dajun won the silver medal with 39.01 seconds. (Xinhua/Zheng Huansong)