Stafford participated without limitations in the parts of practice that the media was allowed to watch Wednesday.
Stafford has missed two games with an injured right knee. The Lions had a bye last Sunday, giving the No. 1 overall pick in the NFL draft another week to recover.
Wide receiver Calvin Johnson's right knee injury prevented him from practicing with his teammates in the open portion of the workout. Johnson has missed one game with the injury.
Copyright 2009 by The Associated Press