The New Orleans Saints say free agent running back C.J. Spiller has agreed to a four-year contract with the club, bolstering a backfield that also includes Mark Ingram and Khiry Robinson. The 27-year-old Spiller has spent his first five NFL seasons with the Buffalo Bills, showing the ability to pile up yards as both a ball carrier and receiver out of the backfield. The Saints also have traded receiver Kenny Stills to Miami for linebacker Dannell Ellerbe and a third-round draft pick, and released defensive back Corey White. More...