RIO DE JANEIRO, BRAZIL - AUGUST 06: (L-R) Silver medalist Yang Sun of China and gold medal medalist Mack Horton of Australia pose during the medal ceremony for the Final of the Men's 400m Freestyle on Day 1 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 6, 2016 in Rio de Janeiro, Brazil. (Photo by Clive Rose/Getty Images)
