Women's butterfly

Sweden's Sarah Sjostrom celebrates after winning the women's 100m butterfly final during the World...

Sweden's Sarah Sjostrom celebrates after winning the women's 100m butterfly final during the World Swimming Championships at the Sant Jordi arena in Barcelona July 29, 2013. (Michael Dalder, Reuters)

, Last Updated: 11:47 AM ET

Sweden's Sarah Sjostrom celebrates after winning the women's 100m butterfly final during the World Swimming Championships at the Sant Jordi arena in Barcelona July 29, 2013. (Michael Dalder, Reuters)

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