I was listening to the post-game stuff on DVE after the game last night, and Tim Benz said Troy had been very sick leading up to the game.  So sick, in fact, he did not run out onto the field with the rest of the defensive starters when they were announced.  This is because he was in the locker room tending to his illness.  He said Troy directed all questions about his illness to Coach Tomlin, but apparently it was some sort of intestinal thing.