When the puck drops on Round 2 this afternoon at TD Garden, Marc Savard will be in Boston’s lineup. Jeff Carter (foot), Simon Gagne (foot), and Ian Laperriere (concussion) will be out of Philadelphia’s.

In: One elite playmaker, albeit a center who hasn’t seen action in nearly two months. Out: An elite finisher, another top-six forward, and a grinding character guy.

“Every day has been building,’’ Savard said after yesterday’s final tuneup at the Garden. “Today was by far my best day out there. Wind-wise, legs-wise, I’m almost up to par. It’s still those battles in the corners that are going to be the toughest thing. Once I get battling, I’m going to have to keep my shifts short early, keep my energy up, and go from there.’’

Although the injury swing favors the Bruins to start, coach Claude Julien has been quick to issue reminders about any rust in Savard’s game in his first few appearances.

“We’ve got to be careful that we don’t think that all of a sudden, Marc Savard’s going to come in and control everything,’’ Julien said. “He hasn’t played in two months. So let’s understand that he’s going to need some time. We’re going to make sure that again, we give him that opportunity to better himself as we move along. You’ve got a great player coming into your lineup. But you’ve got a great player who hasn’t played in two months who’s stepping into the second round of the playoffs. Cautious is certainly something we have to be when it comes to that and not put too much on his plate.’’

That means at the start, no first-line duties for Savard. No work on the No. 1 power-play unit. Most likely no penalty-killing chores. Savard’s return, however, has created a ripple effect throughout the lineup that should make the Bruins even tougher in Round 2:

■ The No. 2 power-play unit, which hummed along without a center in the first round, will have Savard back on the draw (48.8 percent success rate during the regular season). Miroslav Satan, a natural right wing, took most of the faceoffs against Buffalo (3 for 7 in the series). “On the second [unit], the biggest task was winning the faceoff,’’ said Julien. “We sacrificed that so that we could put the right people on the first power play. Obviously it worked well.’’ Johnny Boychuk and Dennis Wideman will work the points. Yesterday, Savard practiced with two down-low units: Satan and Milan Lucic, and Marco Sturm and Michael Ryder.