NFL VP of officiating explains chop block rule change

The NFL's decision to implement a ban on chop blocks earlier this offseason was met with some confusion.

Variations of the high-low tandem block had long been considered illegal, as a defender being blocked both above and below the waist makes for a dangerous play.

Veteran offensive lineman, however, reacted to the news by suggesting the maneuver was imperative in the running game. With defensive holding so rarely called, they suggested the chop block was the only way to combat the issue against double-team blocks.

Dean Blandino, the NFL's vice president of officiating, released a video further explaining the rule changes Friday:

Adjustments made heading into the 2016 campaign outlaw the chop block in all instances, save for incidental contact made when a lineman is attempting to advance to the second level of the defense.