Bruins' GM Peter Chiarelli may be in the market for not just one defenseman, but possibly two by Wednesday's trade deadline. Coach Claude Julien said today before the Bruins-Rangers game at Madison Square Garden that defenseman Adam McQuaid, who missed his 30th game of the season last night with a recurring core injury, may need to slow down in his attempt to return to the lineup. He had been targeted to be back in the lineup for the weekend games against Washnigton and New York, but he had a setback last week and is still on the shelf, a stay that could be extended even further. He hasn't skated since last Wednesday. “There's going to be a decision on whether shut him down or go forward and those decisions will be made in the next day or so,” said Julien prior to the B's game against the Rangers at Madison Square Garden. “He went through some tests the other day. I don't have the answer, but there's going to be an answer soon so we've got to make a decision on whether to go forward or hold him back a little longer.” Julien said McQuaid being “shut down” does not mean for the rest of the season, but rather he'd be held off from exercising for a while longer. “It's in the groin area,” said Julien. “I don't have specifics of it, but it's a very unique injury. I think the doctor at one point may be able to explain it more if we ge to that stage, but it's in the groin/hip area where it's not something you see very often. But it heals, gets hurt again, heals. That's why we've given him a little more time to heal here this team, but we're not sure if he needs more time or whether he's good to go.”