52.1 Slew-footing - Slew-footing is the act of a player or goalkeeper using his leg or foot to knock or kick an opponent’s feet from under him, or pushes an opponent’s upper body backward with an arm or elbow, and at the same time with a forward motion of his leg, knocks or kicks the opponent’s feet from under him, causing him to fall violently to the ice.
52.2 Match Penalty - Any player who is guilty of slew-footing shall be assessed a match penalty.
52.3 Fines and Suspensions - There are no specified fines or suspensions for slew-footing, however, supplementary discipline can be applied by the Commissioner at his discretion (refer to Rule 28).
I've been getting frustrated lately, and the only thing keeping me sane was the team winning and other people stepping up and scoring. Then you just kind of let it go and realize you can end the series with one shot, that frustration goes away for a brief moment, and that's what happened.
— Montreal forward Max Pacioretty after scoring the series-winner in Game 4 -- his first career playoff goal -- to eliminate the Lightning and send the Canadiens into the second round