Devin Thomas we hardly knew you. One day after he came off the physically unable to perform list Thomas the former Michigan State star was released by the Lions. Thomas a receiver and special teams player won a Super Bowl with the Giants in 2011. He ended a brief retirement to sign with the Lions in the spring but couldn't get on the field because of an undisclosed injury. "It's nothing to worry about" he said about the injury Sunday. "I can't really speak on that. I'm moving on." The Lions also released rookie linebacker Alex Elkins. They signed cornerback Brandon King who played for the Colts in 2010 and 2011. The Lions have been short-handed in the secondary with hamstring injuries to Jonte Green and Chris Greenwood. The Lions also claimed linebacker Adrian Moten off waivers from the Browns.