RIO DE JANEIRO, BRAZIL - AUGUST 08: Sarah Sjostrom of Sweden competes in the Women's 200m Freestyle heat on Day 3 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 8, 2016 in Rio de Janeiro, Brazil. (Photo by Adam Pretty/Getty Images)
Sweden's Sarah Sjostrom reacts after the women's 100m butterfly final of swimming at the 2016 Rio Olympic Games in Rio de Janeiro, Brazil, on Aug. 7, 2016. Sarah Sjostrom won the gold medal and smashed the world record with 55.48 seconds./ CHINA OUT
RIO DE JANEIRO, BRAZIL - AUGUST 07: Gold medalist Sarah Sjostrom of Sweden poses on the podium during the medal ceremony for the Women's 100m Butterfly Final on Day 2 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 7, 2016 in Rio de Janeiro, Brazil. (Photo by Clive Rose/Getty Images)
RIO DE JANEIRO, BRAZIL - AUGUST 07: Silver medalist Penny Oleksiak of Canada, gold medalist Sarah Sjostrom of Sweden and bronze medalist Dana Vollmer of the United States pose on the podium during the medal ceremony for the Women's 100m Butterfly Final on Day 2 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 7, 2016 in Rio de Janeiro, Brazil. (Photo by Clive Rose/Getty Images)
