Jamaican Olympic gold medallist Bolt is greeted by U.S. sprinter Spearmon before their training session...
Jamaican Olympic gold medallist Usain Bolt (R) is greeted by U.S. sprinter Wallace Spearmon before their training session for the "Mano a Mano" challenge on Copacabana beach in Rio de Janeiro August 15, 2014. The "Mano a Mano" challenge will be held on August 17. REUTERS/Sergio Moraes (BRAZIL - Tags: SPORT ATHLETICS)
