Boy, the Chiefs sure got embarassed;
Man in critical condition after altercation with Raiders fans at Ravens gamehttp://www.baltimoresun.com/news/maryland/crime/bs-md-ravens-fan-injured-20161002-story.htmlSo few instances like this, it's hardly worth pointing out. Happens from time to time.
I was downtown a few years ago, and these St. Louis Blues fans (Hockey NHL) were walking by in their Blues jerseys; so what? It's piss-poor to hassle fans just because they don't like another team. On the internet of course, there is some needling, not a real big deal in most cases.
A few years ago, there was some sort of incident at a Dodgers/Giants game. I forget who the wrongdoers were now but it was serious, I think the guy got his skull fractured.