2016 Rio Olympics - Athletics - Victory Ceremony - Women's Hammer Throw Victory Ceremony - Olympic Stadium - Rio de Janeiro, Brazil - 15/08/2016. Gold medalist Anita Wlodarczyk (POL) of Poland reacts. REUTERS/Sergio Moraes

2016 Rio Olympics - Athletics - Final - Men's 800m Final - Olympic Stadium - Rio de Janeiro, Brazil - 15/08/2016. David Lekuta Rudisha (KEN) of Kenya runs to win gold, ahead of silver medallist Taoufik Makhloufi (ALG) of Algeria (L). REUTERS/Lucy Nicholson

2016 Rio Olympics - Athletics - Final - Men's Pole Vault Final - Olympic Stadium - Rio de Janeiro, Brazil - 15/08/2016. Thiago Braz da Silva (BRA) of Brazil clears the 6.03m pole to win gold. REUTERS/David Gray

2016 Rio Olympics - Volleyball - Men's Preliminary - Pool A Brazil v France - Maracanazinho - Rio de Janeiro, Brazil - 15/08/2016. Brazilian teammates celebrate. REUTERS/Edgard Garrido

2016 Rio Olympics - Volleyball - Men's Preliminary - Pool A Brazil v France - Maracanazinho - Rio de Janeiro, Brazil - 15/08/2016. Wallace Leandro De Souza (BRA) of Brazil and Bruno (BRA) of Brazil celebrate. REUTERS/Edgard Garrido

2016 Rio Olympics - Athletics - Final - Women's 400m Final - Olympic Stadium - Rio de Janeiro, Brazil - 15/08/2016. Shaunae Miller (BAH) of Bahamas throws herself across the finish line to win the gold ahead of Allyson Felix (USA) of USA. REUTERS/Fabrizio Bensch

2016 Rio Olympics - Athletics - Final - Women's 400m Final - Olympic Stadium - Rio de Janeiro, Brazil - 15/08/2016. Shaunae Miller (BAH) of Bahamas throws herself across the finish line to win the gold medal ahead of Allyson Felix (USA) of USA and Shericka Jackson (JAM) of Jamaica. REUTERS/Kai Pfaffenbach

2016 Rio Olympics - Athletics - Final - Women's 400m Final - Olympic Stadium - Rio de Janeiro, Brazil - 15/08/2016. Shaunae Miller (BAH) of Bahamas celebrates after winning the gold medal. REUTERS/Kai Pfaffenbach