It helped that the Blues got forward Oskar Sundqvist, one of their best penalty killers, back for Game 4. Sundqvist, who was suspended for Game 3 for boarding Bruins defenseman Matt Grzelcyk in Game 2, has played 35:39 of shorthanded ice time in 23 playoff games.
The Blues have done a much better job against the Bruins power play in the past two games. Bruins coach Bruce Cassidy said on Friday that his staff will do what's necessary to spark their power play again, and the Blues will have to be ready for that.
"Either got to stretch them out to get some seams or we got to be less stubborn, then get a net presence and take the shot that's available with that net presence," Cassidy said. "Maybe stretch them out off of puck recovery. A little bit is on us to make sure -- 'us' the staff -- and it's on the players to make the right decision at the right moment in time. That's what we'll look at."
Goaltending has also helped the Blues. Jordan Binnington, who was pulled after allowing five goals on 19 shots in Game 3, came back strong in Games 4 and 5. He saved 21 of 23 shots in a 4-2 win in Game 4 and 38 of 39 shots in a 2-1 win in Game 5.
"We've done a better job of reading moments to be aggressive or moments to step back and try and control it a little bit more," Blues forward Alex Steen said. "But you know they'll make adjustments to their game as well. We've got to be on our toes."