Anaheim's Nick Ritchie got a five-minute major penalty for boarding and a game misconduct when he checked Nashville's Viktor Arvidsson from behind during the first period of Game 6 Monday night.
Arvidsson sustained a cut to his forehead and briefly went to the locker room before returning to the Nashville bench.
The Ducks killed off the major penalty without allowing a goal.
The Predators came into the game with a 3-2 series lead and are looking for their first trip to the Stanley Cup Final.