Jon Steven Young is an American former professional football quarterback who played in the National Football League (NFL) for 15 seasons, most notably with the San Francisco 49ers. He also played for the Tampa Bay Buccaneers, who drafted him. Prior to his NFL career, Young was a member of the Los Angeles Express in the United States Football League (USFL) for two seasons. He played college football for the BYU Cougars, setting school and NCAA records en route to being runner-up for the 1983 Heisman Trophy.