The NFL has a rule against 'horse collar' tackles in which a defender grabs a player from inside the back of their jersey and pulls them down from behind.
For whatever reason, even though it's a very similar tackling motion, the NFL says tackling someone by their hair is okay.
Chris Ivory became the latest victim in Sunday's loss to Houston when he tried to get around superstar defensive end Jadeveon Clowney only to be brought down by what appears to be one dread.
This bring back memories to about five years ago when Jaguars defensive end Jason Babin got a chunk full of Andre Ellington's hair.