What is defense in football




















The third linebacker on the tight end can cover the tight end, blitz or cover any of the short zones to that side or the hook zone over the middle. The cornerbacks can blitz with the safety s assuming the corner's responsibilities.

Or a corner can drop back in deep coverage allowing a safety blitz. Because of its high flexibility, an offense will find it difficult to isolate a particular area or defensive player. If the has a weakness, it is that the inside linebackers are the primary tacklers for runs between the tackles and they are, of course, four to five yards off the ball. The is designed to stop the short passing, ball control offense.

Naturally less than ideal against the run due to only three down linemen, this defense offers an extra defensive back for pass coverage. Consisting of a nose guard and two other down linemen, the coach has the task of deciding who the outside two linemen will be—ends or tackles. Often one of the linebackers has zone pass coverage responsibilities, in effect employing five defensive backs. This is why the is often referred to as the "nickel" defense. Having five defensive backs allows for random blitzing by one or more of these backs in order to maintain a sufficient pass rush.

The is susceptible to the inside run and is used primarily is situations where an interior run is not expected. The is designed to stop the wide running game as well as the short passing game. The uses four down linemen, four linebackers, two cornerbacks and a safety. Stunts are a common component of this defensive set, usually with some or all of the linemen stunting left or right and the inside linebackers stunting in the opposite direction.

A wide range of possible stunts and blitzes are possible. The , also known as the "stack" defense, relies on quickness—particularly quickness in pursuit. In order to run the on a regular basis, the interior down linemen must be players of considerable substance.

The is the standard for many coaches at the high school level and is used somewhat extensively at the collegiate level. Consisting of a nose guard, two defensive tackles and two defensive ends, it is intended mainly as a run defense. However, it can be effective against the pass as well with five pass rushers and two or three linebackers.

Usually the down linemen's first responsibilities are running lane-specific, with each man responsible for a certain gap or lane. The default command for linemen is to read and react to the play, with the defensive end's primary concern being containment. Occasionally, a defensive end may be called on to pass defend an area such as the flat.

Or, he may stand several yards back in shotgun or pistol formation, in which case the center would pass the ball back to him. Running backs RB come in all shapes and sizes. There are huge, bruising power backs, and small, fast scat backs, and some running backs that never even touch the ball.

While their role has changed in modern football, the running back is still a very important position. Running backs must line up in the backfield. In many cases, they split out like a wide receiver and run downfield to catch passes. There was a time, not all that long ago when all running backs needed to be able to carry the ball and gain yards. The NFL was a more run-centered league back then, where today it is a pass-first league.

This means modern running backs need to be good at catching passes and blocking blitzing linebackers. Under the new NFL jersey number rules for , running backs are allowed to wear the numbers 1 through 49 and 80 through Along with defensive cornerbacks, wide receivers are usually the fastest guys on the field.

They must be agile and quick enough to shake defenders who are trying to cover them and be able to reliably catch the football. The main job of the wide receiver is to run downfield and catch passes.

If a wide receiver can block well it's a bonus, but they earn their pay for their receiving abilities. Some wide receivers may also serve as punt or kick returners. Of the seven players lined up on the line of scrimmage, only the ones on the ends of the line are allowed to run downfield and receive a pass.

The tight end TE needs to have the power to block as well the finesse to run downfield and catch the football. Like wide receivers and running backs, under the new NFL jersey number rules tight ends are permitted to wear jerseys with numbers between 1 and 49, and 80 and Today's NFL tight ends are big, powerful receivers with surprising speed.

Kicker K is possibly the position easiest for European audiences to understand, thanks to the popularity of soccer and rugby. The kicker only kicks the ball, but his job is very important. Many a hard-fought football game has come down to the leg of the kicker. The kicker kicks field goals, extra points, and kicks off. In modern football, he plays no other position. In American football, the defense is tasked with stopping the opposing offense from scoring points. Successful defensive players must not only rely on brute power and speed but also have the intelligence to understand what the offense is trying to do to them.

The eleven defenders may line up anywhere they like, as long as they are not across the line of scrimmage. But there are two common defensive schemes employed by most teams: the and the The implies there are four defensive linemen and three linebackers, while the means three linemen and four linebackers. Teams commit to one scheme or the other, not only so they can focus on one style of defense, but because slightly different personnel is required for each.

However, with increasingly sophisticated offenses most teams will use a wide variety of schemes and personnel. There are three main positions on defense, with a range of differences within each position. It all starts with the big guys upfront.

The defensive linemen DL are the first stage of the defense, and the first men the offense must account for in their blocking schemes. Their responsibilities and where they line up are dependant on their exact position and the type of defense they play. Directly across the ball from the offensive line. Defensive linemen usually but not always play from a three or four-point stance, with their hand s on the ground. Linebackers LB are often the best all-around athletes on the field, and much is asked of them.

Part of the reason that there are relatively few football players who play both offense and defense is that the two positions require different skill sets. Offensive positions typically require more speed, agility and accuracy, and defensive players typically require more strength and power, though this isn't to say that defensive players are slow or that players on the offensive line don't require strength.

Receivers and running backs need to be quick on their feet and able to make tight turns to outdistance and outmaneuver defensive players, while the quarterback needs a strong and accurate arm for passes. Players on the offensive line need the strength to stop the advance of defensive players trying to reach the quarterback, though this strength is focused more on receiving the impact than tackling or bringing other players down.

Defensive players require both speed and strength, though these attributes are generally focused on immobilizing members of the offensive line and attempting to tackle receivers, running backs and the quarterback; this isn't to say that certain defensive players such as defensive backs, safeties and outside linebackers don't require speed to cover wide receivers and running backs and agility to make interceptions. Though teamwork is important in any team sport, the way that players work together is different depending on whether the players are on offense or defense.

Offensive players work together to move the football down the field, with three separate players handling the ball from the start of the play in most cases, and other team members try to keep defensive players away from the ball carrier.

Defensive players work together as well, but with a more single-minded focus on stopping the ball; while players on the offense work together based on established plays, defensive players are more reactionary and focus their efforts on adapting to the other team's strategies.

It does, however, limit the pass defense to only 6 passing defenders. The formation is often seen in goal-line sets, where the team is heavily anticipating run.

Teams will also have their defensive lineman line up in 4 point stances, getting as low as possible to create a pile. There is no best defensive formation. Everything comes down to technique and matching personnel on the field. This is so the defense can match the size that the offense presents.

This is to counteract the speed of the offense. Each coach has their own philosophy on what defensive formation should be run. No one team is the same, as techniques, schemes, and even blitz patterns change from team to team.

The bottom line is that as long as gaps are covered in the run game, it will be hard for the offense to run the football.



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