Bump and run coverage
Bump and run coverage is a strategy formerly widely used by cornerbacks in American professional football in which a defender lined up directly in front of a wide receiver and tried to impede him with arms, hands, or entire body and disrupt his intended route. == History == In bump and run coverage, the defender makes contact with the receiver at the line of scrimmage to disrupt the pass pattern between the quarterback and receiver, and then continues to cover the receiver who is either running a delayed or off course pass pattern.