RIO DE JANEIRO, BRAZIL - AUGUST 16: Matthew Centrowitz of the United States, Fouad Elkaam of Morocco, Florian Carvalho of France and Charles Philibert-Thiboutot of Canada compete in the Men's 1500m Round 1 on Day 11 of the Rio 2016 Olympic Games at the Olympic Stadium on August 16, 2016 in Rio de Janeiro, Brazil. (Photo by Paul Gilham/Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 16:  Matthew Centrowitz of the United States, Fouad Elkaam of Morocco, Florian Carvalho of France and Charles Philibert-Thiboutot of Canada compete in the Men's 1500m Round 1 on Day 11 of the Rio 2016 Olympic Games at the Olympic Stadium on August 16, 2016 in Rio de Janeiro, Brazil.  (Photo by Paul Gilham/Getty Images)