SAN ANTONIO–He lost his most lucrative client, Oscar de La Hoya, and switched sides for the May 5 Super Fight to help his son, Floyd Mayweather, Jr. Light heavyweight champ Bad Chad Dawson is another of his newer clients. And, now www.boxingconfidential.com has learned exclusively, the poetry-spouting trainer Floyd Mayweather Sr. has been retained as the new head trainer for undefeated WBO super featherweight champion and Dominican Dandy Joan Guzman. Mayweather, who promises to now create
