WILMINGTON, Mass. — The Bruins returned to practice today at Ristuccia Arena, after taking Sunday off, without winger Brian McGrattan and, of course, center David Krejci.

Krejci, as announced Sunday, is out at least a week with a concussion. McGrattan was placed on waivers for the purpose of assigning him to Providence (AHL). As of now, the Bruins have not recalled anyone to replace Krejci.

“I felt it was time for him to go down there,” said Chiarelli about McGrattan, who is on waivers until noon Tuesday or until he’s claimed. “We put him on conditioning assignment last week, and frankly it was just something that I thought we might’ve needed to start the year. I’m not saying we still won’t need him, because I spoke with him, and there’s a good chance he’ll be back. It was time to put him down and get him off the cap for one thing, and we’ll see where it goes from here.”

So in Krejci’s absence, Patrice Bergeron skated between Milan Lucic and Nathan Horton. Blake Wheeler shifted from wing to center on a line flanked by Mark Recchi and Jordan Caron. Daniel Paille, a healthy scratch the last 10 games, skated on a line with Tyler Seguin and Michael Ryder.

More later.