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The chain gang. In gridiron football, the chain crew (commonly known as the "chain gang") is a crew that manages signal poles on one of the sidelines.There are three primary signal poles: the "rear rod" that marks the beginning of the current set of downs, the "forward rod" that marks the line to gain, and the "box" that marks the line of scrimmage.
In association football, channels is the name given to certain areas of the pitch, created by the space between players and groups of players. There are two types of channels, vertical (between full backs and their closest centre back), and horizontal (between defence, midfield, and attack).
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The entire field is a rectangle 360 feet (110 m) long by 160 feet (49 m) wide; covering a total of 1.32 acres. [1] The longer lines are the sidelines and the shorter lines are called end lines. NFL rules call for the sidelines and end lines to be 6 feet (1.8 m) wide, though the lines may be narrower on fields used for multiple sports or by ...
A route tree for a receiver on the left side of the offense. A route is a pattern or path that a receiver in gridiron football runs to get open for a forward pass. [1] Routes are usually run by wide receivers, running backs and tight ends, but other positions can act as a receiver given the play.
Per the league, a tracking system is installed at every NFL stadium that includes "20-30 ultra-wide band receivers," "2-3 radio-frequency identification (RFID) tags installed into the players ...
Gridiron football (/ ˈ ɡ r ɪ d aɪ. ər n / GRID-eye-ərn), [1] also known as North American football, [2] or in North America as simply football, is a family of football team sports primarily played in the United States and Canada.
In football, the formation describes how the players in a team are positioned on the field. Many variations are possible on both sides of the ball, depending on the strategy being employed. On offense, the formation must include at least seven players on the line of scrimmage , including a center to start the play by snapping the ball.