Are you referring to the "knee on knee" hit by DeBrusk? If so, that was not dirty. At all. They were skating directly toward each other, DeBrusk made contact with his shoulder and did not move or stick out his knee in the slightest. If anything, it was Kadri's fault for his big spill because he tried to sidestep the hit. Again, DeBrusk went in with the shoulder. Totally clean hit. Go watch the replay.
Speaking of Kadri, I'm surprised that he got out of Boston alive last night. Guy is a total rat and takes the crown for dirtiest player in the league now that Matt Cooke is gone. Game 1 he slew footed DeBrusk along the boards and could have caused a serious injury then he puts the cherry on top last night with a dirty cross check directly to the head of a defenseless player. He's the kind of rat who makes dirty hits and then goes to the ground with his gloves glued to his stick. He's a complete and utter ****bag. He'll easily get 5 game suspension and is done for the series.