Seidenberg hasn't played since he sustained a knee injury Dec. 27, but he has been taking contact in practice recently.
Here are the lineups for Game 7 based on how they skated in warmups (7 p.m. ET; NBCSN, CBC, RDS). It's possible that Boston's defense pairs will be different for the start of the game than they are below:
He's, believe it or not, actually one of my favorite guys, and I've ended up trading him twice. I appreciate what he's done. He was one year away from being an unrestricted free agent, and I felt with this opportunity, that it was a chance that we were able to get somebody for him in Nick Bonino and Adam Clendening.
— Penguins GM Jim Rutherford on forward Brandon Sutter