Why do hardcore football fans behave like rutting stags?
A quietly escalating issue for NFL: Fan violence and how to contain it - The Washington Post
Beautiful. Violent. American. The N.F.L. at 100. - The New York Times
The NFL's Unique Approach to Machine Learning - Bloomberg
How COVID-19 Reveals the Cruelty of the NFL - The Atlantic
When sports fans fight: Why violence in the stands, online rage are spreading
Violence and the N.F.L. - The New York Times
Op-Ed: Is there something about Americans that makes us football addicts? - Los Angeles Times
SPECIAL REPORT: Violence in the stands is sweeping the NFL - fighting fans are going viral, the league insists supporter safety is 'our top priority' but what is behind the problem and
CTE beyond the NFL: Everyday people seek help in a dubious brain health industry : NPR
The Cowboys conflict: The cost of rooting for America's Team - ESPN
College football - Wikipedia
Baltimore's St. Frances Academy has a football team so good, no one in its league will play it - The Washington Post