ALLEN PARK -- The Detroit Lions have released cornerback Stantley Thomas-Oliver with a reported injury waiver. Thomas-Oliver had a tough start to camp, opening on the NFI list and then suffering a hamstring injury the next day in Allen Park. The 27-year-old spent last year with the Lions appearing in one game with five special teams snaps.

Gruden visited Detroit Lions training camp Monday in Allen Park, where his good friend and protege John Morton is the team's new offensive coordinator. Gruden reiterated his desire to return to the sidelines as a coach.