'The Bills' defense was missing some big dogs of its own for those final two possessions. Cornerback Ronald Darby also exited the game in the first quarter with a concussion, prompting all sorts of shuffling in an already thin secondary. Defensive lineman Marcell Dareus — who finished with two sacks, three tackles for loss and two quarterback hits — left the game just before the first of Jacksonville's last two drives with what Rex Ryan called an "abdominal issue."'