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Checkdown
In gridiron football, a checkdown pass is when the quarterback attempts to complete a short, accurate pass, typically to a running back or tight end, as a last option when the primary option(s) as designed by the play call are covered. The term means that the quarterback has "checked down" his list of receivers. Because the quarterback does not look for the checkdown pass until after they have scanned for open receivers down the field for about 3–4 seconds, the defensive line has had time to enter the backfield and so a checkdown pass is often thrown in the face of pressure from the defensive line. Alternatively, if the quarterback is inexperienced or the defensive team has sent a blitz, with linebackers and/or defensive backs also looking to sack the quarterback, the checkdown may also turn out to be the quarterback's second or even first look. A screen pass A screen pass is a play in gridiron football consisting of a short pass to a receiver who is protected by a screen of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blitz (American Football)
In gridiron football, blitzing is a tactic used by the defense to disrupt pass attempts by the offense. During a blitz, a higher than usual number of defensive players will rush the opposing quarterback, in an attempt either to tackle them or force them to hurry their pass attempt. In practice, a blitz involves five or more players rushing during a single down, rather than the four or three rushers used during normal play. For example, in a defense that normally uses four defensive linemen to rush, a blitz can be created by adding one or more linebackers or defensive backs. Blitzing is a higher-risk strategy, as fewer defensive players are left to cover receivers or to defend against running plays. However, a successful blitz will result in a sack or will force the quarterback into making an error. The term "blitz" is German for "lightning" and a reference to the blitzkrieg tactic of World War II. History The term "red-dog" referred to a rushing linebacker that create ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Running Back
A running back (RB) is a member of the offensive backfield in gridiron football. The primary roles of a running back are to receive American football plays#Offensive terminology, handoffs from the quarterback to Rush (American football)#Offense, rush the ball, to line up as a receiver to catch the ball, and Blocking (American football), block. There are usually one or two running backs on the field for a given play, depending on the offensive formation. A running back may be a Halfback (American football), halfback (in certain contexts also referred to as a "tailback" — see #Halfback/tailback, below), a wingback (American football), wingback, or a Fullback (American football), fullback. A running back will sometimes be called a "feature back" if he is the team's key player/more prominent running back. With the increase in pass-oriented offenses and single set back formations, it is more common to refer to these players as simply running backs. Halfback/tailbac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Screen Pass
A screen pass is a play in gridiron football consisting of a short pass to a receiver who is protected by a screen of blockers. During a screen pass, a number of things happen concurrently in order to fool the defense into thinking a long pass is being thrown, when in fact the pass is merely a short one, just beyond the defensive linemen. Screens are usually deployed against aggressive defenses that rush the passer. Because screens invite the defense to rush the quarterback, they are designed to leave fewer defensive players behind the rushers to stop the play. Use A screen pass can be effective, but it can also be risky as it is rather easy for a defensive player, even a lineman, to interception, intercept the pass if a defender gets between the quarterback and the intended receiver—something that only happens if the offensive line misses a block, the quarterback takes too long to throw or the defense blitz (gridiron football), overwhelms the offensive line. If the pass is inte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gridiron Football
Gridiron football ( ),"Gridiron football" ''Encyclopædia Britannica''. Retrieved October 20, 2010. also known as North American football, or in North America as simply football, is a family of team sports derived from (and football, by extension) primarily played in the and . |
Forward Pass
In several forms of football, a forward pass is the throwing of the ball in the direction in which the offensive team is trying to move, towards the defensive team's goal line. The legal and widespread use of the forward pass distinguishes gridiron football (American football and Canadian football) from rugby football (rugby union, union and rugby league, league) from which the gridiron code evolved, in which the play is illegal. Illegal and experimental forward passes had been attempted as early as 1876, but the first legal forward pass in American football took place in 1906, after a change in the rules. Another rule change on January 18, 1951, established that no center or guard could receive a forward pass, and a tackle may only do so if he announces his intent to the referee beforehand that he will be an eligible receiver, called a tackle-eligible play. The only Lineman (gridiron football), linemen who can receive a forward pass are the ends (tight ends and wide receivers). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quarterback
The quarterback (QB) is a position in gridiron football who are members of the offensive side of the ball and mostly line up directly behind the Lineman (football), offensive line. In modern American football, the quarterback is usually considered the leader of the offense, and is often responsible for calling the play in the huddle. The quarterback also touches the ball on almost every offensive play, and is almost always the offensive player that throws forward passes. When the QB is tackled behind the line of scrimmage, it is called a Quarterback sack, sack. The position is also colloquially known as the "signal caller" and "field general". The quarterback is widely considered the most important position in American football, and one of the most important positions in team sports. Overview In modern American football, the starting quarterback is usually the leader of the offense, and their successes and failures can have a significant impact on the fortunes of their team. Ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tight End
The tight end (TE) is an offense (sports), offensive position in American football, arena football, and Canadian football. It is a hybrid that combines the characteristics and roles of both an offensive lineman and a receiver (football), receiver. As part of the receiver corps, they play inside the flanks (tight), contrasted with the split end who plays outside the flanks (wide). Like offensive linemen, they are usually lined up on the offensive line and are large enough to be effective blockers. On the other hand, unlike offensive linemen, they are eligible receivers and potent weapons in a team's offensive schemes. The tight end's role in any given offense depends on the preferences and philosophy of the head coach, offensive coordinator, and overall team dynamic. In some systems, the tight end will merely act as a sixth offensive lineman, rarely going out for passes. Other systems use the tight end primarily as a receiver, frequently taking advantage of the tight end's size t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Football Positions
In American football, the specific role that a player takes on the field is referred to as their position. Under the modern rules of American football, both teams are allowed 11 players on the field at one time and have "unlimited free substitutions", meaning that they may change any number of players during any dead ball situation. This has resulted in the development of three task-specific "platoons" of players within any single team: the offense (the team with possession of the ball, which is trying to score), the defense (the team trying to prevent the other team from scoring, and to take the ball from them), and special teams, who play in all kicking situations. Within these three separate platoons, various positions exist depending on the jobs that the players are doing. Offense In American football, the offense is the team that has possession of the ball and is advancing toward the opponent's end zone to score points. The eleven players of the offense can be separated i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linebacker
Linebacker (LB) is a playing position in gridiron football. Linebackers are members of the defensive team, and typically line up three to five yards behind the line of scrimmage and so back up the defensive linemen. They play closer to the line of scrimmage than the defensive backs (secondary). As such, linebackers play a hybrid role and are often the most versatile players on the defensive side of the ball; they can be asked to play roles similar to either a defensive lineman (such as stopping the runner on a running play) or a defensive back (such as dropping back into pass coverage). How linebackers play their positions depends on the defensive alignment, the philosophy of the coaching staff, and the particular play the offense may call. Linebackers are divided into middle linebackers, sometimes called inside linebackers, and outside linebackers. The middle linebacker is frequently the "quarterback of the defense". His central role on the field means he is in the best positio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Defensive Back
In gridiron football, defensive backs (DBs), also called the secondary, are the players on the defensive side of the ball who play farthest back from the line of scrimmage. They are distinguished from the other two sets of defensive players, the defensive linemen who play directly on the line of scrimmage, and the linebackers, who play in the middle of the defense, and between the defensive line and the defensive backs. Among all the defensive backs, there are two main types, cornerbacks, which play nearer the line of scrimmage and the sideline, whose main role is to cover the opposing team's wide receivers, and the Safety (gridiron football position), safeties, who play further back near the center of the field, and who act as the last line of defense. American defensive formations usually includes two of each, a left and right cornerback, as well as a strong safety and a free safety, with the free safety tending to play further back than the strong safety. In Canadian football, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
