International Boxing Hall of Famer, Undisputed World Welterweight Champion, and a WBA Welterweight Champion from 1971 to 1975.
His professional debut was a first-round knockout of Julio Rojas on August 2, 1958.
He is part of an exclusive group of fighters that won 50 or more fights by knockout during their careers.
He met his wife, Bertha Navarro, in Juarez.
He succeeded Billy Backus as Welterweight Champion in 1971.