Chara sat out the "Black and White" scrimmage Tuesday and the preseason opener Wednesday at Ottawa, which the Bruins lost 2-1 in overtime. He had suffered a contusion Monday when an errant clearing shot hit him in the right knee during practice.
"I'm feeling good," Chara said. "I'm very glad that it wasn't [serious]. Obviously, it's something that you're a little worried about when it does happen, but I was pleased that it wasn't as bad as it looked.
"The pain is just a factor that I can handle, but as far as the swelling and being able to have the full range of motion, that's the key."
Chara has a basic game plan for Friday.
"Compete, work extremely hard and play simple," Chara said. "Obviously it's the first game so I'm not trying to do too much but I'm trying to find the timing and get that rust away. So nothing too complicated."
Chara also said he is ready for whatever ice time coach Claude Julien throws at him.
"Whatever Coach is comfortable with," Chara said. "It doesn't matter whether it's preseason or regular season. I should be out there and I'm fine with it."
James Murphy covers the Bruins for ESPNBoston.com.