The Indianapolis Colts have signed running back Stevan Ridley, the team announced Sunday. The Colts are searching for a backup behind starter Frank Gore, who had 227 more carries than his next-closest teammate last season. The backups behind Gore have combined to rush for only 91 yards on 49 carries in three preseason games. Ridley rushed for 1,263 yards in his second season in New England in 2012. He's rushed for only 1,203 yards total in the past three seasons. He suffered a knee surgery in 2014. Rewad more http://www.espn.com/nfl/story/_/id/17409510/running-back-stevan-ridley-signs-indianapolis-colts