Jay Bouwmeester and Ryan O'Reilly each had two assists, and Jake Allen made 40 saves in his first game since Jan. 17 for the Blues, who are 10-2-1 their past 13 games.
"I'll tell you, I'd put that up against anything in the world. That's tough," Allen said of sitting out for 23 days. "I think it's probably one of the longest stretches I've been off since I played, been in the NHL. It's tough. If you're a goalie or a player, sticking your legs back more than anything, you always feel a little bit wonky out there at the start of the game, but you try and settle in as quick as you can and find your rhythm again. So that was the biggest thing. A big game, a big rivalry and we're clawing for points. It was tough, but it was fun."
Arvidsson scored twice, Josi had a goal and an assist, Ryan Ellis and Ryan Johansen each had two assists, and Saros made 24 saves for Nashville (33-19-5), which has lost three of its past five.