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RIO DE JANEIRO, BRAZIL - AUGUST 7, 2016: Sarah Sjostrom of Sweden reacts after winning the women's 100m butterfly final and setting a new world record of 55.48 at the Rio 2016 Summer Olympic Games, at the Olympic Aquatics Stadium. Stanislav Krasilnikov/TASS (Photo by Stanislav Krasilnikov\TASS via Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 7, 2016: Sarah Sjostrom of Sweden reacts after winning the women's 100m butterfly final and setting a new world record of 55.48 at the Rio 2016 Summer Olympic Games, at the Olympic Aquatics Stadium. Stanislav Krasilnikov/TASS (Photo by Stanislav Krasilnikov\TASS via Getty Images)