The penalty for a forward pass, batted, muffed or caught by an ineligible a player who is behind, in or beyond the neutral zone is

I believe the answer is: Illegal Touching, Loss of 5 Yard and loss of down, 7-5-13

Example of The ineligible player that is mentioned above is an offensive lineman. If the player goes out of bounds on purpose, the players will no longer able to compete in the play in order to prevent the player from running though the bench.