Packers linebacker Aaron Kampman says that the team wasn't aware that he played most of Sunday's game with a concussion. He took a hit to the head in the first quarter, but played into the fourth period before he told coaches that he wasn't OK. "They didn't know what was going on," Kampman said Wednesday. "They need to be completely absolved. And I didn't really know what was going on. Sometimes you just play. You keep playing. And you don't really know what's going on. But it got to a point where I was having some symptoms where I knew I was probably going to jeopardize the team, so I knew to come out." Kampman had "a couple" concussions in his rookie year and possibly another one in his second season.