The Oakland Raiders are expressing interest in free agent running back Cedric Benson, a league source told ESPN NFL Insider Adam Schefter. Over the past three years, Benson produced three 1,000-yard seasons for the Cincinnati Bengals and scored 19 touchdowns. He's also the 29-year-old running back who has drawn zero interest since free agency started over the past three-plus months ago. Benson can be a dependable No. 2 option in this league. Maybe his public griping over splitting carries last season turned off teams. Source: ESPN.com