Watch: Roope Hintz bloodies Nathan MacKinnon as Stars-Avalanche rivalry comes to blows

Stop us if you've heard this one before: Things on the ice got awfully physical between the Dallas Stars and the Colorado Avalanche. Tuesday's matchup between the rival sides didn't take very long at all to turn chippy, with a scrap between Radek Faksa and Colorado's Fedor Svechkov in the first period needing to be broken up by the game's officials before each party was delved a major penalty. But it was in the second period when things really turned ugly, with a star from each side — Roope Hintz for Dallas and Nathan MacKinnon for Colorado — dropping the…