2016 Rio Olympics - Judo - Final - Men -81 kg Final - Gold Medal Contest - Carioca Arena 2 - Rio de Janeiro, Brazil - 09/08/2016. Travis Stevens (USA) of USA and Khasan Khalmurzaev (RUS) of Russia compete. REUTERS/Kai Pfaffenbach

2016 Rio Olympics - Judo - Final - Men -81 kg Final - Gold Medal Contest - Carioca Arena 2 - Rio de Janeiro, Brazil - 09/08/2016. Travis Stevens (USA) of USA and Khasan Khalmurzaev (RUS) of Russia compete. REUTERS/Toru Hanai FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

2016 Rio Olympics - Judo - Final - Men -81 kg Final - Gold Medal Contest - Carioca Arena 2 - Rio de Janeiro, Brazil - 09/08/2016. Travis Stevens (USA) of USA embraces his coach. REUTERS/Kai Pfaffenbach

2016 Rio Olympics - Judo - Final - Men -81 kg Final - Gold Medal Contest - Carioca Arena 2 - Rio de Janeiro, Brazil - 09/08/2016. Travis Stevens (USA) of USA and Khasan Khalmurzaev (RUS) of Russia compete. REUTERS/Kai Pfaffenbach

2016 Rio Olympics - Judo - Final - Men -81 kg Final - Gold Medal Contest - Carioca Arena 2 - Rio de Janeiro, Brazil - 09/08/2016. Khasan Khalmurzaev (RUS) of Russia celebrates winning the gold medal. REUTERS/Kai Pfaffenbach

2016 Rio Olympics - Judo - Final - Men -81 kg Final - Gold Medal Contest - Carioca Arena 2 - Rio de Janeiro, Brazil - 09/08/2016. Khasan Khalmurzaev (RUS) of Russia receives congratulations from Travis Stevens (USA) of USA on winning the gold medal. REUTERS/Kai Pfaffenbach

2016 Rio Olympics - Judo - Final - Men -81 kg Final - Gold Medal Contest - Carioca Arena 2 - Rio de Janeiro, Brazil - 09/08/2016. Khasan Khalmurzaev (RUS) of Russia celebrates winning the gold medal. REUTERS/Toru Hanai

2016 Rio Olympics - Swimming - Preliminary - Men's 200m Butterfly - Heats - Olympic Aquatics Stadium - Rio de Janeiro, Brazil - 08/08/2016. Michael Phelps (USA) of USA is seen with red cupping marks on his shoulder as he competes. REUTERS/Michael Dalder