Defensive end
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Defensive end is the name of a defensive position in the sport of American football.
This position has designated the players at each end of the defensive line, but changes in formations have substantially changed how the position is played over the years.
[edit] History
Early formations, with six- and seven-man lines, used the end as a containment player, whose job was first to prevent an "end run" around his position, then secondarily to force plays inside.
When most teams adopted a five-man line, two different styles of end play developed: "crashing" ends, who rushed into the backfield to disrupt plays, and "stand-up" or "waiting" ends, who played the more traditional containment style. Some teams would use both styles of end play, depending on game situations.
Traditionally, defensive ends are in a three-point stance, with their free hand cocked back ready to "punch" the offensive lineman. Some defensive ends play the position due to their size; they close down their gap so the running back has no hole to run through. Other ends play the position due to their speed and agility; they are used to rush the quarterback. These ends can time the snap of the ball in order to get a jump on the rush.
Most of the time it is the job of the defensive end to keep outside contain, which means that no one should get to their outside; they must keep everything to the inside. The defensive ends are usually fast for players of their size, often the fastest and smallest players on the defensive line. They must be able to shed blockers to get to the ball. Defensive ends are also often used to cover the outside area of the line of scrimmage, to tackle ball carriers running to the far right or left side, and to defend against screen passes. Defensive ends are usually the only players on the line who are ever used to cover offensive players running receiving routes, albeit ones that are very close to the line of scrimmage.
