San Francisco 49ers fans and New York Giants fans took it to the streets Sunday afternoon. Men and women both engaged in fisticuffs. The Giants fans never stood a chance and word in the Youtube comments is that the New York fans started it. Their heads looked like Rock 'Em Sock 'Em Robots as 49ers fans hit them with wild haymakers. 

San Francisco fans take sports very seriously. When will people realize that?

[via Terez Owens]