... “It is an unforgiving behavior, and one that we need to try to define and get out of the game,” Miller said.
NFL competition committee chair Rich McKay called the tackle a “cousin” to the horse-collar tackle, which consists of grabbing the inside collar of the back or side of an opponent’s shoulder pads or jersey, or the jersey at the name plate or above, to pull a runner toward the ground. A hip-drop tackle similarly involves a tackler grabbing a ball carrier from behind and pulling him down in a manner that prevents self-defense.
https://www.yahoo.com/sports/nfl-cou...050441627.html