
Kelsi Worrell of the United States competes during the Women's 100m Butterfly Final of swimming at the 17th FINA World Championships in Budapest, Hungary on July 24, 2017. Kelsi Worrell took the bronze medal with 56.37 seconds. (Xinhua/Ding Xu)

Kelsi Worrell of the United States competes during the Women's 100m Butterfly Final of swimming at the 17th FINA World Championships in Budapest, Hungary on July 24, 2017. Kelsi Worrell took the bronze medal with 56.37 seconds. (Xinhua/Ding Xu)