Referee Joannette's leg bends the wrong way (video)

Referee Joannette was accidentally tripped by Bruins' Jakub Zboril's stick and lost his balance falling to the ice and twisting his leg. He was unable to leave the game on his own. See below

Hopefully referee Marc Joannette is not seriously injured. pic.twitter.com/YP8URE1xyc— Bally Sports Detroit (@BallySportsDET) December 1, 2021