Brazil's Yamaguchi Falcao Florentino reacts after defeating Cuba's Julio la Cruz Peraza in a men's quarterfinal light heavyweight 81-kg boxing match at the 2012 Summer Olympics, Wednesday, Aug. 8, 2012, in London. (AP Photo/Ivan Sekretarev)
Brazil's Yamaguchi Falcao Florentino reacts after defeating Cuba's Julio la Cruz Peraza in a men's quarterfinal light heavyweight 81-kg boxing match at the 2012 Summer Olympics, Wednesday, Aug. 8, 2012, in London. (AP Photo/Ivan Sekretarev)