Buffalo Bills offensive guard Chris Williams is still recuperating from back surgery, and it's uncertain whether he'll be cleared for the start of training camp next month. General manager Doug Whaley provided the update to The Associated Press on Wednesday, revealing why Williams has been absent from the team's offseason voluntary workouts and practices. New coach Rex Ryan previously said that he's not yet spoken with Williams, but had not provided a reason why the player had not been in attendance. More...