Bills coach Dick Jauron was "guardedly optimistic" Willis McGahee will play against Jacksonville this weekend after the running back took part in his first practice on Thursday. It was McGahee's second straight day of practice after breaking three ribs in a 24-10 win against Green Bay on Nov. 5. Jauron said McGahee was involved in some contact and described the player as moving well while wearing added padding to protect his ribs.