From TSN:

The Vancouver Canucks big win over the Phoenix Coyotes Monday night was a costly one. The Canucks lost winger Mason Raymond mid-way through the third, when he was hit knee-on-knee by Coyotes defenceman Keith Ballard. Early reports have Raymond out of action for four weeks with an MCL sprain.

There was no penalty called on the play, but Canucks head coach Alain Vigneault thinks the league should look into what he called ‘a dirty play’.

Was it a dirty play? That wasn’t my impression. Ballard was just moving fast and missed his target. While the results are terrible—and it probably should have drawn a penalty—it didn’t appear to be purposeful, just a case of bad timing when trying to connect an awkward hit.

Video is below.