2016 Rio Olympics - Swimming - Final - Men's 200m Individual Medley Final - Olympic Aquatics Stadium - Rio de Janeiro, Brazil - 11/08/2016. Ryan Lochte (USA) of USA reacts. REUTERS/David Gray

2016 Rio Olympics - Swimming - Victory Ceremony - Men's 400m Freestyle Victory Ceremony - Olympic Aquatics Stadium - Rio de Janeiro, Brazil - 06/08/2016. Mack Horton (AUS) of Australia poses with his gold medal. REUTERS/Marcos Brindicci

2016 Rio Olympics - Golf - Final - Men's Individual Stroke Play - Olympic Golf Course - Rio de Janeiro, Brazil - 14/08/2016. Henrik Stenson (SWE) of Sweden lines up his putt on the third green during the final round of the men's Olympic golf compeititon. REUTERS/Andrew Boyers

2016 Rio Olympics - Golf - Final - Men's Individual Stroke Play - Olympic Golf Course - Rio de Janeiro, Brazil - 14/08/2016. Justin Rose (GBR) of Britain lines up a putt on the third green during the final round of the men's Olympic golf compeititon. REUTERS/Andrew Boyers

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

2016 Rio Olympics - Golf - Final - Men's Individual Stroke Play - Olympic Golf Course - Rio de Janeiro, Brazil - 14/08/2016. Justin Rose (GBR) of Britain reacts after putt on the third green during the final round of the men's Olympic golf compeititon. REUTERS/Andrew Boyers

2016 Rio Olympics - Golf - Final - Men's Individual Stroke Play - Olympic Golf Course - Rio de Janeiro, Brazil - 14/08/2016. Justin Rose (GBR) of Britain tees off on the third hole during the final round of the men's Olympic golf compeititon. REUTERS/Andrew Boyers

2016 Rio Olympics - Athletics - Final - Women's Marathon -Sambodromo - Rio de Janeiro, Brazil - 14/08/2016. Jemima Sumgong (KEN) of Kenya, Mare Dibaba (ETH) of Ethiopia and Eunice Jepkirui Kirwa (BRN) of Bahrain lead the race REUTERS/Pilar Olivares