Wow! Easily one of the biggest punches during a fight from this season in the NHL.
The Calgary Flames are visiting the Bell Centre to take on the Montreal Canadiens, and there was a one-punch knock down near the end of the first period.
Michael Pezzetta of the Canadiens and Connor Mackey of the Flames dropped the gloves at centre ice, and it's safe to say the Montreal forward got the best of his opponent. Check it out below: