
It's a tough assignment, but good linemen have a way of getting it done. This requires the lineman to reach, or quickly get into position to make the block at the snap of the ball. Sometimes a lineman may be forced to block a player who is lined up in a strong position for stopping the play. Reach block: This is one of the toughest blocks in football.This is most often done when the defense shifts so that the original blocking scheme at the point of attack is made too difficult. He will then "fold" around the block and take the player his teammate would have blocked. Fold Block: Instead of blocking the defensive player directly in front of him, a lineman may run around the back of his fellow lineman and allow that player to crash down and block his man.Guards trap most often, but tackles and centers may do so as well. As in a pull, the lineman breaks laterally along the line of scrimmage and finds the player he is supposed to trap. In reality, smart defensive players usually know when a trap is coming, but if it is executed well it can still be effective.

Trap: A trap play is where a defensive player is set up to believe he is left unblocked, and then gets knocked out of the play by a lineman he wasn't expecting.

Guards pull more often, but tackles and even centers may pull on certain plays. A good example of this is on sweep plays, where offensive linemen lead the play ahead of the running back.

These rivalries can last a game, a season, or a career. While football is a team game, offensive linemen often play a one-on-one game within the game.
