https://www.washingtonpost.com/sports/redskins/a-quietly-escalating-issue-for-nfl-fan-violence-and-how-to-contain-it/2016/10/28/4ec37964-9470-11e6-bb29-bf2701dbe0a3_story.html?noredirect=on&utm_term=.5dc076caa8d1
There are lots of YouTube videos of fights at various NFL games, Go Birds!!!!
As...