The Blackhawks–Blues rivalry is a National Hockey League (NHL) rivalry featuring two teams in the league's Western Conference Central Division, the Chicago Blackhawks and the St. Louis Blues. Since 1970, the two teams have been in the same division. It is the most intense rivalry in terms of penalty minutes and fighting, and at the height of the rivalry during the Norris Division days, it was common to go to a Chicago vs. St. Louis game and see a brawl break out.