Runing back Eddie Lacy left in the first quarter of the Packers 38-20 win over the Redskins with a concussion after his first carry of the game. Weston Hodkiewicz of the Green Bay Press Gazette reports the Packers don't know the full extent of Lacy’s concussion, caused by a collision with Washington safety Brandon Meriweather when he appeared to lead with the crown of his helmet at the end of a 10-yard carry. Source:The Redzone
