New NFL jersey number rules allow single digits for defense
Loosened jersey number restrictions and no overtime in preseason highlight NFL rule changes
Explaining the proposed NFL rule change in enforcing penalties on PATs - Behind the Steel Curtain
NFL Passes Multiple Rule Changes, Including Relaxing of Jersey Number Restrictions - Sports Illustrated Minnesota Vikings News, Analysis and More
Number (sports) - Wikipedia
NFL proposed CBA includes 17 games, raises, limited THC testing
NFL schedule-release date, plus owners approve several rule changes and ranking top defensive backs in draft
Everyone Has Always Hated NFL Overtime
Instant replay on table for NFL owners - The Boston Globe
Tom Brady is NOT Pleased With the NFL's New Number Rules - DozOnLife
NFL rule proposal primer: Changes to overtime, onside kicks and more?
New York Jets - Wikipedia
NFL Health and Safety Related Rules Changes Since 2002
NFL rule proposal primer: Changes to overtime, onside kicks and more?