I think the league hasn't been great at punishment. Some of the sports commentators out here were saying they didn't think it was dirty?? It looks pretty bad to me.
It seems hard to believe that was a mistake...
I think if there was intent to slam him in the turnbuckle, then at the least Chara should be suspended.
Time for the NHL to wake up and take a look at these hits that end up in concussions.