"Rudi Johnson worked out for Lions coaches and front-office personnel Monday morning. But there's nothing imminent -- and may never be -- as far as a possible contract offer to the former Pro Bowl running back, who was released Saturday by the Cincinnati Bengals.

Johnson has been hampered by a hamstring injury this fall, after missing a good chunk of the 2007 season with a similar problem. But while Lions president Matt Millen told reporters at practice Monday that Johnson "looked fine," executive vice president Tom Lewand said the team was just doing its due diligence. He has spoken to Johnson's agent, Peter Shaffer, but said there are no contract negotiations ongoing. "