Should Capitals’ Sill be suspended for hit on Bruins’ McQuaid?

Adam McQuaid leaves Tuesday's game against Washington, after taking a dangerous hit from Zach Sill with no penalty called on the play.

Washington Capitals forward Zach Sill caught Boston BruinsAdam McQuaid with a hit from behind along the boards, sending the defenceman’s head off the glass.

The incident occurred less than five minutes into the second period of Tuesday night’s game. No penalty was called on the play.

McQuaid was clearly vulnerable, with his back to the play and Sill in pursuit.

Should Sill be suspended for his hit on McQuaid?