Referee Signals for Defense in American Football
American Football Referee Signals for Offense
American Football Game-Play Referee Signals

A Collection of Images from Football Rules & Positions In A Day For Dummies

The snap

A quarterback may line up under center, and then the center snaps the ball to him to start the play.

blog comments powered by Disqus
4 NFL Rule Changes for 2013
Professional Football Player Designations
The Rules of High School Football
The American Football Player's Uniform
Football Players' Roles in Team Offense and Defense