"It doesn't matter what the series is at right now," Marchand said. "If they get the next one, they're right back in it. The next one is the one that's most important."
It's a phrase the top-seed Penguins repeated after losing Game 1 on Saturday night to fall behind in a series for the first time in the playoffs. The inspired play they needed never materialized.
Sidney Crosby and Evgeni Malkin were held scoreless for the second straight contest to send the NHL's highest-scoring team slouching to Boston for Game 3 on Wednesday with its season on the line.
"Tonight was terrible, there's no other way to describe it," Crosby said. "A loss is a loss. It's frustrating. You don't like giving one like that. We really didn't do a lot of things to give ourselves a chance to win. This one we have to forget pretty quickly."
It won't be easy.
David Krejci, Nathan Horton, Patrice Bergeron and Johnny Boychuk also scored for Boston while Tuukka Rask stopped 26 shots. Pittsburgh's top-ranked power play went 0 for 2 and the Penguins were never in it after the Bruins scored three times in 17 minutes to chase Tomas Vokoun.
Brandon Sutter netted Pittsburgh's lone goal. Vokoun gave up three first-period goals on 12 shots before being replaced by Marc-Andre Fleury.
"We've gotten away from our game," Pittsburgh coach Dan Bylsma said. "We've gotten off our game plan."
The Bruins had more than a little something to do with it. Pouncing on every mistake of which there were plenty to choose Boston buried the Penguins early. Not bad for a team that needed an improbable third-period rally in Game 7 of the first round against Toronto to advance.
Boston 6, Pittsburgh 1
Bruins lead series 2-0
• Chicago at Los Angeles,7 p.m., NBCSN
Blackhawks lead series 2-0
• Pittsburgh at Boston,6 p.m., NBCSN