The Detroit Lions may be without one of their top offensive linemen Sunday against Atlanta. Starting right tackle LaAdrian Waddle, who missed three games earlier this season with a calf injury, did not practice Wednesday due to a concussion. It is unclear when Waddle suffered the concussion, as he played throughout the Lions' win over New Orleans on Sunday. Read more http://espn.go.com/nfl/story/_/id/1...lions-concussion-miss-game-vs-atlanta-falcons