<Dt> Center (C) </Dt> <Dd> The center is the player who begins the play from scrimmage by snapping the ball to the quarterback . As the name suggests, the center usually plays in the middle of the offensive line, though some teams may employ an unbalanced line where the center is offset to one side . Like all offensive linemen, the center has the responsibility to block defensive players . The center often also has the responsibility to call out blocking assignments and make last second adjustments depending on the defensive alignment . </Dd> <Dl> <Dt> Offensive guard (OG) </Dt> <Dd> Two guards line up directly on either side of the center . Like all interior linemen, their function is to block on both running and passing plays . On some plays, rather than blocking straight ahead, a guard will "pull", whereby the guard comes out of his position in line to lead block for a ball carrier, on plays known as "traps" (for inside runs), or "sweeps" (for outside runs), or "screens" (for passing plays). In such cases, the guard is referred to as a "pulling guard". </Dd> </Dl> <Dt> Offensive guard (OG) </Dt>

Who lines up next to the center in football