see more

RIO DE JANEIRO, BRAZIL - AUGUST 08: Michael Phelps of United States competes in the semi final of the Men's 200m Butterfly 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 Ian MacNicol/Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 08:  Michael Phelps of United States competes in the semi final of the Men's 200m Butterfly 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 Ian MacNicol/Getty Images)