Perhaps the only thing that could take the luster off tonight’s renewal of the Bruins-Canadiens rivalry at the Bell Centre is the fact that the visitors will not be quite at tip-top health. Left home yesterday were wingers Daniel Paille (eye) and Shawn Thornton (concussion), while winger Brad Marchand (upper body) practiced in Montreal, with his availability to be determined today. If Marchand is unable to go, B’s fans could get an interesting look into the team’s future. As insurance, 21-year-old forward Ryan Spooner was called up from Providence of the AHL on an emergency basis. Spooner, the 45th overall pick in the 2010 draft, got the word late Monday afternoon that he was headed to the NHL. “I’m excited to be a part it,” Spooner said yesterday morning before flying out to Montreal. “If I do get to play, I’m just going to try my best and try to help the team.” Spooner was tied for the lead in points for Providence (nine goals, 21 assists in 35 games) and has been especially hot as of late, notching 3-11-14 totals in the last 12 games. “I think it just has to do with me being comfortable,” Spooner said of his recent success. “Obviously when I was first there I was nervous and didn’t really know the guys that well. I wasn’t really familiar with the routine and now I’m used to everything. Obviously, the more comfortable you are, the better you’re going to play.” If need be, coach Claude Julien could reunite the Providence line of Spooner, Chris Bourque and Jamie Tardif. Whatever the case, Julien has liked what he’s seen from Spooner at the AHL level. The coach felt it might be a little tougher transition to the pro level for a junior player like Spooner, who’d been going against mostly teenagers, than it is for college players who are often facing older players. “It’s about learning the pro game,” Julien said. “But the one thing I saw is the skill level is definitely one of the NHL. He can skate well and everything else and some of the goals he scored were highlight goals. There’s no doubt he’s on the right track and I’d be very surprised not to see this guy play as a full-time NHLer down the road.”