Patrice Bergeron returned to Bruins practice Monday morning for the first time since suffering a mild concussion on May 6. It was the third consecutive day Bergeron has skated (and his first day with his teammates), but coach Claude Julien would not give a timetable on the assistant captain's return to the lineup. "As I said the other day, we're going through the protocol of what he has to go through," Julien said. "There's not much more to update you guys on except that I think, when he is ready to go, I think you guys will know it. "It's just something that you can't predict, how quickly, or how slow it's going to be. It's just one of those situations where, right now, you see him going through what you saw him going through today's skating. But that's protocol, and right now, we're not ready to make any comments because he's just going through those stages."