F i l t e r & S o r t Filter & Sort
Donald Clement Klosterman (January 18, 1930 – June 7, 2000) was one of professional football's most accomplished executives, building teams in three different leagues after a serious accident ended his playing career as a quarterback and left his legs partially paralyzed. In the 1960s, Klosterman helped the American Football League (AFL, 1960–1969) overtake the National Football League (NFL) during the