In response to Fletcher1's comment:
While I can't join Crowls on this and I think Orpik was indeed knocked out, I think most people would agree it was one of the more puzzling knockouts I have ever seen in a hockey game. I had to watch it several times in slo-mo to believe that Thornton actually landed a decent shot. Between the visor (yes Nas, the visor) and the gloved hand, it is still very suprising that the punch did so much damage. Not suspicious, just suprising.
I tried to think of when else I have seen a gloved hand knock a guy out cold, and I recalled Tootoo doing it to Robidas...with a powerful roundhouse into a streaking Robidas, that caught him square in the face. Watch that, and you understand the need for a stretcher.
Orpik's injury was weird, that's all. I don't think he was faking. I do think he was knocked out. But it was very strange.
Harkened me back to 'Glass Joe' in Mike Tyson's punchout.
My vote would be 5 games for Thornton.
That's a fair assessment, fletch and I would certainly accept that explanation. A few posters out here seem to be suggesting that Thornton landed serious blows to Orpik. That just didn't happen.
Still, reckless action on Thornton's part resulting in an injury. I am thinking he gets 7, on par with what John Scott got (also a 1st time offender).