It couldn’t have gotten any worse for the Bruins power play after giving up two shorthanded goals against the Rangers, could it?

Well, it didn’t on Monday night against the Sabres. It was quite the polar opposite.

Instead of costing the Bruins, the power play was a remedy of success in their first of a five-game in seven-day stretch. In eight chances with the man advantage, the Bruins scored three times and kept the pressure on an injury-plagued Sabres squad en route to their 4-0 victory at TD Garden.

“It was huge. I think our power play stepped up tonight big time,” said goaltender Tuukka Rask, who passed Tim Thomas for third on the team’s all-time shutout list with 32. “We had a lot of time there to make the plays and create scoring chances, and we took advantage of that. After Saturday’s game, we talked about it and we knew we needed to be better in special teams and today we were.”

Instead of being overagressive like they were against the Rangers, the Bruins kept things simple with the man advantage. Yet they were aggressive enough to capitalize on their chances.

From Brad Marchand finding space and pinballing the puck past Robin Lehner for his fifth of the year to David Krejci finally getting off the schneid with his first of the season from the point — on a two-man advantage — the two power play goals in the second period set the tone for the Black and Gold.

“We tried to keep it simple and get some shots,” said David Pastrnak, who tallied the Bruins’ third power play goal at 9:45 of the third for his team-leading eighth goal of the season. “I think both power play [units] did well and special teams came up big for us tonight.”

Putting an emphasis on the power play at the morning skate, head coach Claude Julien and company saw their plan come to fruition at least for one night. But it was good that they kicked things off on the right foot in their first game of a difficult five-game in seven-day stretch that continues Tuesday night in Montreal versus a team that is in the bottom third in the league on the penalty kill.

Against a Canadiens team that is once again off to a hot start at 10-1-1, one would assure that the Bruins want to pick up right where they left off, especially on their two power play units. The last thing they need is a repeat performance from Saturday’s debacale against the Rangers.

“In order to be sucessful you have to outwork the penalty kill,” Julien said about the Bruins power play, which fired 16 shots on goal on Monday night. “That’s always been the case, and we have a tendency sometimes on the power play to think that we have the extra guy and we just have to take it easy, but at the same time I thought that we did a better job at finding the seams and getting shots at the net and jumping on those loose pucks and getting to the rebounds. Those are the type of things that we need on the power play.”