2016 Rio Olympics - Swimming - Victory Ceremony - Men's 400m Individual Medley Victory Ceremony - Olympic Aquatics Stadium - Rio de Janeiro, Brazil - 06/08/2016. Gold medallist Kosuke Hagino (JPN) of Japan poses with silver medallist Chase Kalisz (USA) of USA and bronze medallist Daiya Seto (JPN) of Japan. REUTERS/Michael Dalder

2016 Rio Olympics - Swimming - Semifinal - Men's 100m Breaststroke Semifinals - Olympic Aquatics Stadium - Rio de Janeiro, Brazil - 06/08/2016. Adam Peaty (GBR) of United Kingdom reacts REUTERS/David Gray

2016 Rio Olympics - Swimming - Victory Ceremony - Women's 400m Individual Medley Victory Ceremony - Olympic Aquatics Stadium - Rio de Janeiro, Brazil - 06/08/2016. Mireia Belmonte (ESP) of Spain, Katinka Hosszu (HUN) of Hungary and Maya DiRado (USA) of USA pose on the podium with their medals. REUTERS/Stefan Wermuth

2016 Rio Olympics - Swimming - Victory Ceremony - Women's 4 x 100m Freestyle Relay Victory Ceremony - Olympic Aquatics Stadium - Rio de Janeiro, Brazil - 06/08/2016. Emma McKeon (AUS) Brittany Elmslie (AUS) Bronte Campbell (AUS) and Cate Campbell (AUS) of Australia pose with their medals. REUTERS/Stefan Wermuth

2016 Rio Olympics - Swimming - Victory Ceremony - Men's 400m Freestyle Victory Ceremony - Olympic Aquatics Stadium - Rio de Janeiro, Brazil - Mack Horton (AUS) of Australia, Sun Yang (CHN) of China (PRC) and Gabriele Detti (ITA) of Italy pose with their medals. REUTERS/Dominic Ebenbichler

2016 Rio Olympics - Swimming - Victory Ceremony - Women's 4 x 100m Freestyle Relay Victory Ceremony - Olympic Aquatics Stadium - Rio de Janeiro, Brazil - 06/08/2016.(L-R) Cate Campbell (AUS) of Australia, Bronte Campbell (AUS) of Australia, Brittany Elmslie (AUS) of Australia and Emma McKeon (AUS) of Australia pose with their gold medals and the Australian flag. REUTERS/Dominic Ebenbichler

2016 Rio Olympics - Soccer - Preliminary - Women's First Round - Group E South Africa v China - Olympic Stadium - Rio de Janeiro, Brazil - 06/08/2016. Linda Motlhalo (RSA) of South Africa challenges Pang Fengyue (CHN) of China (PRC). REUTERS/Gonzalo Fuentes

2016 Rio Olympics - Soccer - Preliminary - Women's First Round - Group E Brazil v Sweden - Olympic Stadium - Rio de Janeiro, Brazil - 06/08/2016. Beatriz (BRA) of Brazil celebrates after scoring their fifth goal. REUTERS/Gonzalo Fuentes