In the immediate aftermath of Shawn Thornton’s fight with Buffalo’s John Scott last Thursday, which left the Bruins enforcer with a concussion, several teammates said that, knowing Thornton, they didn’t think he’d be out too long. Well, that appears to be the case. Thornton, whom the B’s expected to miss 7-10 days, skated yesterday for the first time since the concussion. While coach Claude Julien termed him “very doubtful” for tomorrow’s game in Montreal, he said all signs are positive. Thornton skated with strength coach John Whitesides before practice. “He’s feeling really good,” said Julien. “He’s been symptom-free for a few days now. He rode the bike (Sunday), he skated (yesterday) and things are going well. But obviously there’s a protocol to follow and we’re going to follow that to the letter.” Thornton’s linemate, Daniel Paille, who missed Saturday’s game in Toronto after taking a stick under his left eye, appears closer to returning than Thornton. Paille practiced yesterday, though he stayed out of the 3-on-3 battle drills and is still awaiting medical clearance to play against the Canadiens. “After a couple of days off, I wanted to get the legs back in order and I don’t feel too bad,” said Paille, who didn’t suffer any eye damage or broken bones. Paille had a nice night cut short because of the injury. Usually on the fourth line with Thornton and Gregory Campbell, he was skating with Rich Peverley and Chris Kelly, and seemed to fit in well. In that game, Peverley scored not only his first goal of the year but the third line’s first goal. In Toronto, Chris Bourque was back on that line and produced the game’s only goal.