
Yuliya Efimova of Russia competes during women's 50m breaststroke swimming final at the 17th FINA World Championships in Budapest, Hungary on July 30, 2017. Yuliya Efimova won the silver with 29.57 seconds. (Xinhua/Ding Xu)

Yuliya Efimova of Russia competes during women's 50m breaststroke swimming final at the 17th FINA World Championships in Budapest, Hungary on July 30, 2017. Yuliya Efimova won the silver with 29.57 seconds. (Xinhua/Ding Xu)