In gridiron football, defensive backs, 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 o
Pittsburgh Steelers defensive back Deshea Townsend jumps for the ball with St. Louis Rams wide receiver Drew Bennett
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 a
Defensive back
…Defensive specialist (arena football) American football positions…
The offensive line (on left, in orange jerseys) consists of a center (with ball in hand ready to snap) with two guards on either side, and two tackles
A wide receiver (No. 87, in white) begins a play in the flanker position
The four defensive linemen (in red) have their hands on the ground in a three-point stance.
This defense (in white) is in a base 4–3 set. Just behind the four defensive linemen (whose hands are on the ground) are three linebackers (numbers 55, 3, and 16), and further back are two safeties (numbers 24 and 44). The two cornerbacks are off-screen to the left and right.