First-placed Japan's Hirooki Arai (C), second-placed Hayato Katsuki (L) and third-placed Satoshi Mauro celebrate on the podium during the awarding ceremony for the men's 50km competition at the IAAF World Race Walking Team Championships Taicang 2018 in Taicang, east China's Jiangsu Province, May 5, 2018.(Xinhua/Ji Chunpeng)