Football Terminology and Defensive Schemes

Key football terminology including defensive coverages, personnel groupings, and specific player techniques for controlling the field.

Leverage

The positional advantage a player has over an opponent in terms of body angle, strength, or positioning to control or limit the opponent’s movement.

Cover $1$

A defensive scheme where there is one safety playing deep and the rest of the defense plays man-to-man coverage.

Cover $2$

A zone defense where the two safeties divide the deep part of the field in half while corners play short zones focused on quick throws or pressuring receivers.

Cover $3$

A zone defense where three defensive backs, usually the two safeties and one cornerback, each cover a deep third of the field.

Cover $4$ (Quarters)

A zone defense where the deep part of the field is divided into four quarters, each covered by a safety or cornerback.

Shuffle

A defensive back or linebacker’s lateral movement used to stay in front of a receiver or ball carrier while maintaining a balanced, ready position.

Burst

The quick acceleration a player exhibits after a change of direction or when they suddenly explode to close ground on an opponent.

Reroute

When a defensive player physically disrupts a receiver's route by impeding their progress at the line of scrimmage or downfield.

Man Defense

A defensive scheme where each defender is responsible for covering a specific offensive player wherever they go on the field.

Run the Alley

The responsibility of a defensive player to fill the gap between the defensive line and the sideline to stop a run play.

Block Destruction

The technique used by defenders to disengage from offensive blockers using hands, footwork, and leverage.

Block Shedding

The use of skills by a defensive player to break free from an offensive lineman or blocker trying to keep them away from the ball carrier.

Second Level

The area of the defense behind the defensive line and in front of the secondary where linebackers typically operate.

Blitz

A defensive strategy where additional players, usually linebackers or defensive backs, rush the quarterback to disrupt the play.

Engage

The action of physically making contact with a blocker or offensive player.

Crossover Run

A type of footwork or run where the ball carrier crosses behind or between offensive linemen to evade tacklers.

Step Replace

A footwork technique used by defenders where they take a replace step to stay in position or shift to tackle the ball carrier.

Cross Face

A move made by defensive players to move across an offensive lineman’s body to rush the quarterback or stop the ball carrier.

Surf

A technique where a defender stays square to the line of scrimmage and positions themselves to move along the line while keeping the offensive player in front.

Force Player

A defender responsible for forcing the ball carrier inside or toward the middle of the field to prevent them from turning the corner.

J Step

A quick, deceptive step used to fake one direction and quickly change to another to mislead an opponent.

The Box

The area within $5$ yards of the line of scrimmage, between the tackles on both sides, where most running plays occur.

Gaps

The spaces between offensive linemen, commonly labeled as A, B, and C.

$11$ Personnel

An offensive formation consisting of $1$ tight end, $1$ running back, and $3$ wide receivers.

$10$ Personnel

An offensive formation consisting of $1$ tight end and $0$ running backs, often including $4$ wide receivers.

Bail

A technique where a defensive back takes several steps backward to avoid being beaten on a deep route.

Boundary

The side of the field closest to the sideline.

Set the Edge

The defensive task of staying outside to force a ball carrier back inside on a running play.

Outside Leverage

A technique where a defender positions themselves on the outside of an offensive player to prevent them from reaching the sideline.

Hash

Vertical marks on the field, usually at $70$ yards from the end zones, that can affect the direction of plays or kicks.

$12$ Player Personnel

An offensive formation featuring $1$ tight end and $2$ running backs.