E.J. Speed Downgraded to Doubtful

The Colts have downgraded LB E.J. Speed (knee) to doubtful for Sunday's game against the Dolphins. This is a surprising turn after Speed advanced to a full practice Friday. Jaylon Carlies has run as Indy's third LB and figures to see his role elevated. The rookie hasn't made more than 2 solo tackles or 4 total tackles in a game yet, though. There's IDP upside -- especially against a Tyler Huntley-led Dolphins offense. But there's also risk that Carlies doesn't take on Speed's full role. Segun Olubi and Grant Stuard are other options. Neither has played a defensive snap yet this season.