Manny Pacquiao is included among the notable out-fighters of Boxing .
Notable out-fighters include Muhammad Ali , Manny Pacquiao , Larry Holmes , Joe Calzaghe , Wilfredo Gómez , Salvador Sanchez , Cecilia Brækhus , Gene Tunney , James Roberts and Alexander Skutt , The Boxing Register , 1999 , p.162 Ezzard Charles , James Roberts and Alexander Skutt , The Boxing Register , 1999 , p.254 Willie Pep , James Roberts and Alexander Skutt , The Boxing Register , 1999 , p.384 Meldrick Taylor , Ricardo Lopez , Floyd Mayweather Jr. , Roy Jones Jr. , Sugar Ray Leonard , Miguel Vazquez , Sergio `` Maravilla '' Martínez , Vitali Klitschko , Wladimir Klitschko and Guillermo Rigondeaux .