John Ralph Rizzo (born June 15, 1949) is an American former professional football player who was a running back for three seasons. After playing college football for the Lehigh Mountain Hawks, he played with the Ottawa Roughriders of the Canadian Football League (CFL) in 1972, with the New York Giants of the National Football League (NFL) in 1973, and with the Houston Texans / Shreveport Steamer of the World Football League (WFL) in 1974.