Scott began his professional career in 1969 in the Canadian Football League as a flanker and kick returner with the BC Lions. He was drafted by the Miami Dolphins in seventh round of the 1970 NFL Draft, where in his rookie year, he recorded five interceptions and returned one punt return for touchdown. The following year, he recorded seven interceptions and 318 punt return yards, helping the team reach Super Bowl VI, which they lost 24-3 to the Dallas Cowboys. Scott recorded a 21-yard punt return in the game.