"Usually, when those things happen, you can take that energy and roll through the rest of the hockey game," Ducks coach Randy Carlyle said.
Nashville took a 2-1 lead at 2:42 of the second period on the first goal of the playoffs by Watson. Johansen started the play with a cross-ice pass to Watson, whose one-timer from the left faceoff circle hit Ducks defenseman Sami Vatanen, who was battling for position with Predators forward Cody McLeod.
The Ducks had back-to-back power plays shortly after the go-ahead goal but combined for one shot on goal. They were 0-for-4 and have gone 21 consecutive power plays without scoring, back to Game 2 of the second round against the Edmonton Oilers.
"Both teams want their power play to do more than they did, but at the same time our penalty kill did a nice job today at not giving them much," Forsberg said.
Anaheim completed its series against Edmonton with a Game 7 win on Wednesday. Nashville had not played since ending its series against the St. Louis Blues in Game 6 on Sunday.
The Predators outshot the Ducks 13-1 in the first 13 minutes, but Anaheim scored on its only shot. Kesler kept the puck in the Nashville zone and it skidded diagonally toward the right circle. Silfverberg shot as soon as he got within reach to score over Rinne's right shoulder at 5:15.
Nashville tied it 1-1 at 12:34 on a deflection by Forsberg. Ducks forward Nick Ritchie turned over the puck at the Anaheim blue line and Matt Irwin took a shot from the left point that went through Ritchie's legs, off Forsberg's stick and through Gibson's pads.