Fantasy Update: Alex Smith, Concussion – Ruled Out

San Francisco 49ers quarterback Alex Smith has not received medical clearance from an independent neurologist to return from a concussion and will not play against the Chicago Bears on Monday night, ESPN’s Chris Mortensen reports.

Smith is believed to have sustained his concussion while attempting a quarterback sneak on a fourth-and-one play in the second quarter of last Sunday’s 24-24 tie with the St. Louis Rams.