2016 Rio Olympics - Athletics - Final - Women's 400m Hurdles Final - Olympic Stadium - Rio de Janeiro, Brazil - 18/08/2016. Dalilah Muhammad (USA) of USA celebrates after the race. REUTERS/Kai Pfaffenbach TPX IMAGES OF THE DAY

2016 Rio Olympics - Athletics - Final - Men's Decathlon 1500m - Olympic Stadium - Rio de Janeiro, Brazil - 18/08/2016. Ashton Eaton (USA) of USA embraces Kevin Mayer (FRA) of France after the race REUTERS/David Gray

2016 Rio Olympics - Golf - Final - Men's Individual Stroke Play - Olympic Golf Course - Rio de Janeiro, Brazil - 14/08/2016. Thomas Pieters (BEL) of Belgium hits a tee shot on the third hole during the final round of the men's Olympic golf compeititon. REUTERS/Andrew Boyers

2016 Rio Olympics - Golf - Preliminary - Men's Individual Stroke Play - Olympic Golf Course - Rio de Janeiro, Brazil - 12/08/2016. Patrick Reed (USA) of the United States walks off the tee under an umbrella during the second round of the men's Olympic golf competition. REUTERS/Andrew Boyers

2016 Rio Olympics - Cycling Road - Final - Men's Road Race - Fort Copacabana - Rio de Janeiro, Brazil - 06/08/2016. The Olympic rings are seen as the sun rises over Fort Copacabana ahead of the Men's Road Race. REUTERS/Paul Hanna

Omar McLeod of Jamaica celebrates after winning the race REUTERS/Dylan Martinez

Conseslus Kipruto of Kenya celebrates as he crosses the finish line to win the race REUTERS/Lucy Nicholson

2016 Rio Olympics - Athletics - Final - Men's 3000m Steeplechase Final - Olympic Stadium - Rio de Janeiro, Brazil - 17/08/2016. Conseslus Kipruto (KEN) of Kenya celebrates as he crosses the finish line to win the race REUTERS/Lucy Nicholson