Calgary Flames forward Connor Zary left the game during the second period against the Anaheim Ducks on Tuesday after a knee-on-knee hit.

A scary incident that occurred on Tuesday night has left many up in arms on what the NHL should do. In a game between the Anaheim Ducks and Calgary Flames, Ducks defenseman Drew Helleson was assessed a five-minute major penalty for kneeing Flames forward Connor Zary.

Last night, the Calgary Flames defeated the Anaheim Ducks 3-2 in overtime. It was a close contest throughout the game that ended positively for the Flames, but at what cost?

This one has been tough to watch. During the second period of the game while the Calgary Flames were up 1-0 over the Ducks in Anaheim, Connor Zary had to be helped off the ice after getting kneed by Drew Helleson.