Football players come in many different positions, each with their own unique roles and responsibilities. ENDS are typically wide receivers who line up at the end of the offensive line and are responsible for catching passes from the quarterback. BACKS are usually running backs who line up behind the quarterback and are responsible for carrying the ball and blocking. FULLBACKS are similar to running backs but line up closer to the line of scrimmage and are often used as blockers. WINGBACKS are similar to fullbacks but line up farther away from the line of scrimmage and are often used as receivers. KICKERS are players who specialize in kicking the ball, either for field goals or kickoffs. SPLITENDS are wide receivers who line up on the line of scrimmage and are responsible for running routes and catching passes.