Several players were suspended four games to start the 2011 season. Since four games have now been played, the suspensions have now been lifted.
Buchanon, a 10th-year player, is in his second season with the Redskins. He appeared in 16 games last year, starting five. Hall has spent all six of his NFL seasons with the Titans. He has appeared in every game for three straight seasons. Williams has started all but three games for the Bengals since 2004.
The Redskins, Titans, and Bengals each have a roster exemption through next Monday. If/when the players are added to the active roster, the exemption goes away.