
Yasuhiro Koseki of Japan competes during the men's 200m breaststroke swimming final at the 17th FINA World Championships held in Budapest, Hungary on July 28, 2017. (Xinhua/Ding Xu)

Yasuhiro Koseki of Japan competes during the men's 200m breaststroke swimming final at the 17th FINA World Championships held in Budapest, Hungary on July 28, 2017. (Xinhua/Ding Xu)