Vikings wide receiver Troy Williamson is cleared to play Monday night against the Chicago Bears after missing two games because of effects from a concussion. He was examined at the Mayo Clinic by a neurologist, who found no major problems related to the injury. Williamson says he was told if the headaches continue, he should take a Tylenol and keep going. Williamson has caught just one touchdown pass this season, a sixty-yard bomb on October 14th in the Vikings’ win at Chicago.