RIO DE JANEIRO, BRAZIL - AUGUST 13: Nicole Johnson, fiancee of Michael Phelps of the United States, holds their son Boomer and Debbie Phelps, Michael's mother, celebrate after the Men's 4 x 100m Medley Relay Final on Day 8 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 13, 2016 in Rio de Janeiro, Brazil. (Photo by Clive Rose/Getty Images)
