defensive football player
The NFL Defensive Player of the Year for 2010 is Troy Polamalu.
knocking a defensive player backward
He may have been the greatest football player in the history of the NFL. He was a quarterback, punter, and defensive back for the Washington Redskins.
Soccer (football) - A striker is an attacking player, and a sweeper is a defensive player who moves across the defensive line.
11. Same as offense.