Gaudreau scores after the whistle then Klingberg drops the gloves with Tkachuk

Less than a minute into Game 2 between the Calgary Flames and Dallas Stars and we've got fireworks already!

After Flames forward Johnny Gaudreau shot the puck in the Stars goal well after the whistle, Flames forward Matthew Tkachuk went after Stars defenseman Klingberg for taking a shot at Gaudreau.

Check it out:

Talk about setting the tone!