Nicknamed The Beast, he is a WBC Welterweight Champion, IBF Welterweight Champion, and two-time National Golden Gloves champion.
He was a successful amateur boxer who won a bronze medal in the 2003 World Amateur Championships.
He wrote a March 2010 column for The New York Times in which he described Project Medishare and his efforts to help post-earthquake Haiti.
His brother, James Edson Berto, is a professional mixed martial artist.
His time as champion came to an end at the hands of Victor Ortiz in April 2011.