Canada's Custio Clayton reacts after defeating Mexico's Oscar Molina Casillas in the men's welter (69kg) Round of 32 boxing match at ExCel venue during the London 2012 Olympic Games July 29, 2012. REUTERS/Murad Sezer
Canada's Custio Clayton (L) fights against Mexico's Oscar Molina Casillas in the men's welter (69kg) Round of 32 boxing match at ExCel venue during the London 2012 Olympic Games July 29, 2012. REUTERS/Murad Sezer
Canada's Custio Clayton (R) fights against Mexico's Oscar Molina Casillas in the men's welter (69kg) Round of 32 boxing match at ExCeL venue during the London 2012 Olympic Games July 29, 2012. REUTERS/Murad Sezer
Canada's Custio Clayton (R) lands a punch as he fights against Mexico's Oscar Molina Casillas in the men's welter (69kg) Round of 32 boxing match at ExCel venue during the London 2012 Olympic Games July 29, 2012. REUTERS/Murad Sezer
Canada's Custio Clayton (R) fights against Mexico's Oscar Molina Casillas in the men's welter (69kg) Round of 32 boxing match at ExCeL venue during the London 2012 Olympic Games July 29, 2012. REUTERS/Murad Sezer
Canada's Custio Clayton (R) fights against Mexico's Oscar Molina Casillas in the men's welter (69kg) Round of 32 boxing match at ExCel venue during the London 2012 Olympic Games July 29, 2012. REUTERS/Murad Sezer
Canada's Custio Clayton (R) fights against Mexico's Oscar Molina Casillas in the men's welter (69kg) Round of 32 boxing match at Excel venue during the London 2012 Olympic Games July 29, 2012. REUTERS/Murad Sezer