Free agent Felix Jones worked out for the Eagles on Tuesday. It's probably just due diligence, as the Eagles are expected to let UDFA Miguel Maysonet and Chris Polk battle for No. 3 duties behind LeSean McCoy and Bryce Brown. It's Fragile Felix's second visit of free agency after he left Cincinnati without a deal in early April. Jones' injury history and recent dip in production is a toxic mix for a running back.