Washington Redskins rookie quarterback Robert Griffin exited Sunday's 24-17 loss to the Atlanta Falcons with a concussion after taking a brutal (but 100 percent clean) hit from linebacker Sean Weatherspoon. Initially, the Redskins said that Griffin had been "shaken up" and was questionable to return, which Mark Maske of the Washington Post reports will prompt an inquiry from the league office as teams are required to disclose "accurate and timely injury information" during the game. "At that time when he wasn't really sure what the score was, what quarter it was, we knew he had a mild concussion, at least according to the doctors," Redskins head coach Shanahan said. "He feels good right now—a lot better right now. But that was the situation, why he didn't go back into the game." We hope RG3 is okay, clears the concussion protocol with flying colors and is able to play next week, but it's long overdue for the NFL to permanently remove the term "mild" when describing concussions. Griffin wasn't the only quarterback to suffer a head injury on Sunday. Matt Cassel left the Kansas City Chiefs' 9-6 loss to the Baltimore Ravens in the fourth quarter after he was sandwiched by Haloti...