What is the objective of the defensive chop ?
In the National Football League ( NFL ) , a chop block is legal on running plays when (i) the blockers are aligned next to each other on the line of scrimmage , ( ii ) the blockers were lined up anywhere on the line and the flow of the play is towards the block or ( iii ) the cut blocker was aligned in the backfield and the chop block took place outside the original tight end position .