Meet the 22 NFL players who are wearing No. 0 this season
Lower your heads and ponder new NFL rules
NFL catch rule: How many feet needed inbounds, and comparing vs. NCAA
NFL rule changes include players now being able to wear No. 0, and tripping penalties being personal fouls - Dawgs By Nature
How Many Players in an American Football Team? Understanding Roster Sizes and Player Specialization
NFL Reminds Clubs of Uniform and Equipment Rules
Owners to consider a variety of rules changes at NFL meetings this week - Los Angeles Times
Breaking down the NFL gambling policy: Here are three rules every player in the league must follow
NFL Rules Players Must Follow
No 'NFL rule' that players must stand for national anthem
All NFL Players 'Shall Stand And Show Respect' For Flag And Anthem, League Says : The Two-Way : NPR
NFL Rules Players Must Follow