when you do your ligaments (tear) you can actually still walk, i have seen peoople tear them and walk off the field, it just u can not cut or support a change in direction at all.. but i really do not think he tore them or the medical staff would have annouced it alreeady i really think he stretched his knee the fact he was sitting on the bench with ice on it insteaed of off to the MRi or locker room seemed good news to me