The NHL fined Vlasic $8,378.38 for the infraction at the end of Wednesday's 4-2 victory over the Wild.
Vlasic and Heatley were jostling in the closing seconds of the game. After Vlasic delivered a cross check, Heatley responded by swinging his stick at Vlasic. He missed and Vlasic retaliated and hit Heatley with his stick.
The Wild were upset after the game because Heatley was hurt. But the NHL says the injury came in the ensuing scrum and not from the slash.
I think everyone left it out there. Every game this season, regular season and playoffs, we played as hard as we could. We're not out of the playoffs right now because of lack of effort, and that's all that we can ask of each other.
— Predators defenseman Seth Jones after Nashville was eliminated by Chicago in Game 6 on Saturday