The Cincinnati Bengals announced Saturday that the NFL has suspended starting right guard Bobbie Williams for the first four games of the season for violating the league's policy on performance-enhancing substances.
The Bengals also placed cornerback Adam Jones (neck) on the physically unable to perform list and linebacker Keith Rivers (wrist) on the reserve/non-football injury list. Both players are eligible to return to practice after Week 6 under a roster exemption, then the Bengals would have three weeks to add them to the active roster.
Linebacker Roddrick Muckelroy (Achilles) and tight end Bo Scaife (neck) were placed on the season-ending reserve/injured list.
Other releases included fullbacks Fui Vakapuna and James Develin, cornerbacks Jonathan Wade, Brandon Ghee, David Pender, Korey Lindsey and Rico Murray, tight end John Nalbone, defensive tackles Jason Shirley and Cornell Banks, defensive ends Victor Adeyanju and James Ruffin, receiver Calvin Russell, linebacker DeQuin Evans, running backs Jay Finley and John Griffin, receiver Andrew Hawkins, offensive tackle Matthew O'Donnell, offensive guard Chris Riley and kicker Thomas Weber.
The Associated Press contributed to this report.