
Gold medalist Sarah Sjostrom of Sweden reacts during the awarding ceremony for women's 50m freestyle swimming event at the 17th FINA World Championships held in Budapest, Hungary on July 30, 2017. (Xinhua/Ding Xu)

Gold medalist Sarah Sjostrom of Sweden reacts during the awarding ceremony for women's 50m freestyle swimming event at the 17th FINA World Championships held in Budapest, Hungary on July 30, 2017. (Xinhua/Ding Xu)