Marcus Allen was an athlete.
Damon Allen . Allen is the younger brother of Pro Football Hall of Famer Marcus Allen . The Heisman Memorial Trophy ( usually known colloquially as the Heisman Trophy or The Heisman ) , is awarded annually to the most outstanding player in college football in the United States whose performance best exhibits the pursuit of excellence with integrity . Marcus Allen . His younger brother , Damon Allen , played quarterback for 23 seasons in the Canadian Football League and was professional football 's all-time leader in passing yards . The National Football League ( NFL ) is a professional American football league consisting of 32 teams , divided equally between the National Football Conference ( NFC ) and the American Football Conference ( AFC ) .