
Katinka Hosszu of Hungary competes during women's 400m medley swimming final at the 17th FINA World Championships held in Budapest, Hungary on July 30, 2017. (Xinhua/Ding Xu)

Katinka Hosszu of Hungary competes during women's 400m medley swimming final at the 17th FINA World Championships held in Budapest, Hungary on July 30, 2017. (Xinhua/Ding Xu)