Canada's Andre De Grasse celebrates bronze in the men's 100-metre final during the athletics competition at the 2016 Olympic Summer Games in Rio de Janeiro, Brazil on Sunday, August 14, 2016. THE CANADIAN PRESS/Ryan Remiorz
TEAM USA - led by Michael Phelps carries the flag during the Opening Ceremony of the Rio 2016 Olympic Games at Maracana Stadium on August 5, 2016 in Rio de Janeiro, Brazil. (Photo by Cameron Spencer/Getty)
Gold medalists (L-R) Nathan Adrian, Ryan Held, Michael Phelps and Caeleb Dressel kiss their medals on the podium during the medal ceremony for the men's 4x100-meter freestyle at the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on Aug. 7, 2016 in Rio de Janeiro.