It may be time for Kevin Kolb to walk away from the game.
The Buffalo News' Tim Graham reports the Bills quarterback had a hard time answering questions like "where are you?" and "what's your name?" after suffering a concussion in Saturday's preseason game.
Graham reported Sunday that Kolb's concussion -- the latest in a long line of them -- is severe enough that it may end his career. Bills coach Doug Marrone confirmed the injury, but noted that Kolb is focused on recovery before considering retirement.
At the very least, Kolb is expected to miss the upcoming season, as the team will move forward with new signee Matt Leinart backing up rookies E.J. Manuel and Jeff Tuel. An undrafted free agent, Tuel is expected to start the season opener while Manuel recovers from knee surgery.
Kolb, 29, should only be considered about his long-term health at this point, so hanging up his cleats seems like the smart decision to make. His NFL career was on its last legs, anyway.