With 17 weight classes in boxing ... light heavyweight champion WBO: Canelo Alvarez IBF: William Scull WBA: Canelo Alvarez WBC: Canelo Alvarez* *David Benavidez is the WBC super middleweight ...

Former heavyweight champion George Foreman, who lost to Muhammad Ali in boxing's iconic 1974 "Rumble ... the 19-year-old Foreman bludgeoned his way to the super-heavyweight gold.

Fondly known as Big George, Foreman dropped out of school as a teenager and went on to become an Olympic boxing gold medalist ... bludgeoned his way to the super-heavyweight gold.

Former heavyweight champion George Foreman, who fought and lost against Muhammad Ali in boxing's iconic 1974 ... old Foreman bludgeoned his way to the super-heavyweight gold.