Cuba's Julio La Cruz Peraza, left, fights Brazil's Yamaguchi Falcao Florentino in a light heavyweight 81-kg quarterfinal boxing match at the 2012 Summer Olympics, Wednesday, Aug. 8, 2012, in London. (AP Photo/Patrick Semansky)
Cuba's Julio La Cruz Peraza, left, fights Brazil's Yamaguchi Falcao Florentino in a light heavyweight 81-kg quarterfinal boxing match at the 2012 Summer Olympics, Wednesday, Aug. 8, 2012, in London. (AP Photo/Patrick Semansky)