2016 Rio Olympics - Athletics - Final - Men's Marathon - Sambodromo - Rio de Janeiro, Brazil - 21/08/2016. Feyisa Lilesa (ETH) of Ethiopia celebrates as he wins silver REUTERS/Sergio Moraes

2016 Rio Olympics - Athletics - Victory Ceremony - Men's Marathon Victory Ceremony - Maracana Stadium - Rio de Janeiro, Brazil - 21/08/2016. Feyisa Lilesa (ETH) of Ethiopia poses with his silver medal. REUTERS/Stoyan Nenov

2016 Rio Olympics - Athletics - Final - Men's Marathon - Sambodromo - Rio de Janeiro, Brazil - 21/08/2016. Feyisa Lilesa (ETH) of Ethiopia celebrates as he wins silver REUTERS/Sergio Moraes

In this still image from video Olympic gold medallist swimmer Ryan Lochte of the U.S. gives an interview to Globo TV at their studios in New York City, August 20, 2016. Courtesy Globo TV via REUTERS

Football Soccer Britain - Manchester United v Everton - Wayne Rooney Testimonial - Old Trafford - 3/8/16 Manchester United's Ander Herrera in action with Everton's Ross Barkley Action Images via Reuters / Jason Cairnduff Livepic EDITORIAL USE ONLY.

Football Soccer - Barcelona v Sevilla - Spanish SuperCup second leg - Camp Nou stadium, Barcelona , Spain - 17/08/16 Barcelona's Claudio Bravo blocks a penalty against Sevilla. REUTERS/Albert Gea

Russian Prime Minister Dmitry Medvedev and synchronized swimmer Natalia Ischenko take part in the awarding of new cars to Russian Olympic medallists returning home from the 2016 Rio Olympics in Moscow's Kremlin, Russia, August 25, 2016. REUTERS/Maxim Shemetov

2016 Rio Olympics - Shooting - Victory Ceremony - Women's 25m Pistol Victory Ceremony - Olympic Shooting Centre - Rio de Janeiro, Brazil - 09/08/2016. Anna Korakaki (GRE) of Greece poses with her gold medal. REUTERS/Edgard Garrido