There was concern Chara would be limited at training camp after the surgeries, but those worries were unfounded.
"So right now I'm basically part of all of the drills," he said. "I don't think I'll be playing first few [preseason] games. That's probably something that we have to talk about what's going to be after. And I think with less [preseason] games than in previous years, definitely I think most of the guys that played all the way to the Finals won't see probably many of those games. But again it's something that the coaching staff and management have to decide."
Chara had 14 points (five goals, nine assists) and was third on the Bruins with an average of 21:05 of ice time in 62 games last season. He'll enter this season as the oldest player in the NHL.
McAvoy (22:10) and Carlo (20:55) ranked first and fourth on the Bruins in average ice time last season.
If their absences continue, it would leave Boston thin at defenseman. The Bruins know John Moore will be out at least until November after offseason shoulder surgery, and Kevan Miller hasn't resumed skating since having two knee surgeries last season.
Chara said he thinks the Bruins can succeed even if they're shorthanded at defenseman, but he also anticipates that McAvoy and Carlo's contract situations will be resolved.
"I think that that's something that will play out eventually," he said. "But I think that as of right now we've got to really focus on who is here and do our best to get the best out of training camp. I believe that Brandon and Charlie will be here at the beginning of the season. But you know anything can happen and I think that right now we just got to go as it is."