 On September 16, 1957, he was traded along with guard Mike Sandusky to the Pittsburgh Steelers in exchange for linebacker Marv Matuszak and two first-round draft picks.Despite the high cost of the transaction, the Steelers traded him just over a year later to the Detroit Lions in order to obtain future Hall of Famer Bobby Layne.Morrall was with the Lions for the next six years, having his best season in 1963 by throwing for 24 touchdowns and more than 2,600 yards.