Defenseman Zdeno Chara was a full participant as the Boston Bruins opened training camp Saturday, even if he wasn't quite at full speed.Chara is coming off postseason surgery to repair a torn labrum in his left shoulder, and said he's not 100 percent, yet."I'm not able to do everything I'd like to but I'm taking my time, day by day," Chara said. Source: Bruins' Chara not quite 100 percent after surgery