Floyd Mayweather Jr Vs. Serafim Todorov (OLYMPIC FOOTAGE) (Video) 1 discussions Floyd Mayweather Jr. in his Olympic semifinal bout against the eventual silver medalist, Serafim Todorov of Bulgaria. Mayweather lost by a controversial decision that the U.S. team officially proteste.. Tags: Floyd Mayweather Jr Olympics Olympic Serafim Todorov Boxing Amateur Atlanta Cotto Hatton De La Hoya Mosley Delahoya PBF