The Wilderness Years - New York Giants 1964-1978 - Big Blue Interactive
NFL roughing the passer rule, explained: What to know about controversial penalty, history of changes to protect QBs
NFL Rule Changes That Altered the Game Forever, News, Scores, Highlights, Stats, and Rumors
The History of Football Games - GameSpot
COVID-19 and its impact on football - A Sports Law and Policy Centre and LawInSport Joint Survey - 4th Edition - LawInSport
How the Analytics Movement Has Changed the NFL and Where It Has Fallen Short
1978: Holy Roller play revises rules – Football Zebras
How wide receivers have evolved in the NFL - The Boston Globe
NFL moves to 17-game regular season in 2021: What it means for teams, players, revenue and fans - ESPN
Five-yard chuck rule changed the game
Tragedies That Changed The NFL Forever