- Center (American football)
Center (C) is a position in
American footballand Canadian football(spelled centre in Canadian English).
The center is the innermost lineman of the
offensive lineon a football team's offense. The center is also the player who passes (or "snaps") the ball between his legs to the quarterbackat the start of each play.
The center's first and primary role is to pass the football to the quarterback. This exchange is called a snap. Most offensive schemes make adjustments based on how the
defensive lineand linebackers align itself to the offensive line, and what gaps they line up in. Because the center has an ideal view of the defensive formation before the snap, he typically makes the first line call. This call is typically based on the position of the defensive linemenor linebackers in his gaps (0i-1i), most subsequent adjustments are dependent on this call. In some cases the center may call an adjustment for the entire offensive line.
After the snap, the center performs blocking assignments. The blocking assignments vary by offense but typically consist of the following:
Run blocking assignments will vary based on the current play and the defensive formation when the ball is snapped. Typically, these assignments consist of the following:
*Blocking middle or backside linebackers in certain formations, then moving up to secondary levels if no linebacker is present.
*Assisting guards in their blocking assignments. This may be a center/guard doubleteam where the center and guard are assigned to the same target (usually a
defensive tackle) to get extra push or drive. Assistance may also be just a quick hit or "chip" to help the guard to execute his block, while the center moves up to higher level targets.
*Backside blocking for pulling guards or
defensive tackles. In some offensive schemes, certain plays will involve the "pulling" an offensive linemanto block for the ball carrier. If a guard needs to pull for a block, the center will typically block the defensive tackle in order to fill the guard's void.
* Pass blocking for a center is very similar to the above Run Blocking section. The center will initially help guards based on the position of the defensive linemen. In the case of a blitz, the center may need to pick up a rushing linebacker, safety or corner. A good center also needs to stay vigilant during pass blocking to protect against defensive stunts and twists.
During the play
On most plays, the center will snap the ball directly into the quarterback's hands. In a
shotgun formation, the center snaps the ball to the quarterback lined up several yards behind him. In punt and field goal formations, the center also snaps the ball several yards behind him to the punter or holder on the field goal unit. Because bad snaps can ruin special teamsplays and cause turnovers, some teams have a center who is specifically trained for snapping the ball in punt and field goal formations. This player is often referred to as the team's long snapper. Also, it must be noted that the center does not have to snap the ball to the quarterback, holder, or punter. He is allowed to snap the ball to anyone behind him. Because of this, some plays involve snaps directly to running backs instead of the player generally expected to receive the snap, hoping to fool the defense.
In slang, the player receiving the snap is said to be "under center" if he receives the ball directly from the center (not in shotgun). This phrase is typically applied to quarterbacks, but has been used in reference to other positions as well.
In special teams situations, the center is a long snapper, who snaps the ball to a punter standing approximately 12-14 yards behind him, or to the holder for the
placekicker, kneeling approximately convert|7|yd|m behind him. These long snappers are players particularly talented at performing these snaps, and are typically a different person from the regular long snapper.
Although the quarterback commands the ball, it is the center's snap that renders the ball in play; the defensive line may not cross the
line of scrimmageuntil the center snaps the football. An astute center can help draw an opposing team offside prior to the snap or potentially trick the other team into a penalty by quickly snapping the ball while the opposing team attempts to substitute players.
college football, the Dave Rimington Trophyis awarded annually to the nation's most outstanding center.
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