The National Hockey League Officials Association said linesman Don Henderson, who reportedly sustained a concussion when he was cross-checked from behind by Calgary Flames defenceman Dennis Wideman, will miss the remainder of this season.

Wideman’s 20-game suspension for the hit was reduced to 10 games by NHL / NHLPA neutral discipline arbitrator James C. Oldham on Friday.

“The NHLOA strongly disagrees with the arbitrator's decision to reduce Dennis Wideman’s suspension to 10 games while linesman Don Henderson continues to recover from an injury inflicted by the player that will sideline him for the rest of the season,” NHLOA president Dan O’Halloran said in a statement on Saturday. “The message in reducing the suspension that is sent to NHL players, as well as athletes all over the world, including children, is that the code of conduct towards officials has changed.