The Facts: Following up on a previous item. ... According to Detroit Free Press staffer Dave Birkett, Bell did in fact suffer a concussion.

Diehards Line: Bell left today's game against the Jets early due to the injury. The Lions wouldn't make him available after the game, a usual step when players suffer head injuries. Bell will have to go through the league's concussion protocol before he can return to action. We'll be following up throughout the week.