Cleveland Browns head coach Kevin Stefanski said that wide receiver Cedric Tillman (concussion) remains in the league's concussion protocol but is improving. Tillman suffered a concussion in last Thursday night's upset win over the division-rival Pittsburgh Steelers. He has extra time to try and pass through the NFL's concussion protocol before the Monday night contest versus the Denver Broncos in Week 13, but Tillman should be considered iffy to play this week. The 24-year-old pass-catcher ...