Krejci/By S. Bradley

PHILADELPHIA — Here we go again.

The Bruins are ahead of the Philadelphia Flyers in a playoff series.

One year after going up 3-0 and then losing to the Flyers, the Bruins started this season’s Eastern Conference semifinal rematch with a convincing 7-3 rout that sent the message the Bruins were trying to convey all week and head coach Claude Julien verbalized: “last year was last year; this year is this year.”

David Krejci, who recorded one point in the seven-game first round against Montreal, erupted for two goals and two assists. The Bruins jumped out to a 5-1 lead and hardly looked back, much to the chagrin of the Wells Fargo Center crowd.

Here’s a glance at the rest of the box score:

•Krejci and his linemates Nathan Horton and Milan Lucic were a combined plus-8. Horton registered a goal and an assist.

•Defenseman Dennis Seidenberg set up two goals and posted a plus-4 rating. Five different Bruins enjoyed multi-point nights.

•Center Gregory Campbell, who like his former Florida teammate Horton is in his first NHL playoff season, scored his first postseason goal to cap Boston’s scoring.

•The Flyers pulled goaltender Brian Boucher at 17:14 of the third period when it was 5-1. He finished the night with 18 saves on 23 shots. Rookie Sergei Bobrovsky stopped eight of 10 shots in relief.