A Collection of Images from Football Rules & Positions In A Day For Dummies
American Football Game-Play Referee Signals
4 NFL Rule Changes for 2013

Referee Signals for Defense in American Football

Illegal crackback block.

The referee strikes with an open right hand around the middle of his right thigh, preceded by a personal foul signal, to signal an illegal crackback block.

  • Add a Comment
  • Print
  • Share

Recommends

Promoted Stories From Around The Web

COMMENTS »
blog comments powered by Disqus
American Football Referee Signals for Offense
American Football Stadiums and Fields
Professional American Football Leagues besides the NFL
Using Instant Replay to Challenge a Call in American Football
Referee Signals in American Football