The Anaheim Ducks defenceman has been suspended for one game after hitting Ottawa's Dean McAmmond in the head with his forearm during Game 3.
McAmmond left the game with a head injury and is doubtful for Game 4 tomorrow night.
It's the second time Pronger has been suspended during these playoffs.
He missed Game 4 of the Western Conference final.
Anaheim currently leads the NHL championship series 2-1.