Muhammad Ali Sugar Ray Robinson Joe Louis Mike Tyson Floyd Mayweather Evander Holyfield Roberto Duran Leonard Henry Armstrong Lennox Lewis Rocky Marciano Ezzard Charles George Foreman Jack Dempsey Gene Tunney Frazier Manny Pacquiao Johnson Benny Sonny Liston Bernard Hopkins Jake LaMotta Stanley Ketchel Archie Moore Canelo Alvarez Harry Greb Marvin Hagler Julio Cesar Chavez Thomas Hearns Larry Holmes