You have selective memory. Bulls/Knicks, Bulls/Pistons, Raiders/Steelers, Vikings/Packers, Yankees/Red Sox, Yankees/Orioles, Twins/White Sox, Giants/Dodgers, Giants/Braves, Cowboys/Eagles, Pistons/Celtics, Celtics/Lakers, Bruins/Every NHL team, Cowboys/49ers, Cardinals/Reds, Royals/Yankees. All of those rivalries had important parts added to it by "dirty play." And, as I pointed out many times, football season has started so why haven't you been advocating for Captain Munnerlyn to be fired or charged with assault for his personal foul on the Rams receiver? The guy was out of bounds in a defenseless position with Munnerlyn whipped him to the ground. That's certainly an "assault", as you called it, and much more dangerous than any baseball fiasco. Or is illegal contact in football "just part of the game" and something you can accept?