Originally written on Fox Sports  |  Last updated 11/18/14

ST. LOUIS - JANUARY 3: Quarterback Alex Smith #11 of the San Francisco 49ers looks to pass the ball during the game against the St. Louis Rams at the Edward Jones Dome on January 3, 2010 in St. Louis, Missouri. The 49ers beat the Rams 28-6. (Photo by Dilip Vishwanat/Getty Images)
San Francisco 49ers quarterback Alex Smith practiced again on Saturday, however his availability is still uncertain for the game against the Chicago Bears. Smith suffered a concussion last week against the St. Louis Rams. He still hasn't been cleared to play by doctors, and the 49ers (6-2-1) might not get a final verdict on his status until hours before Monday's NFC showdown against the Chicago Bears (7-2). ''Alex is still going through the protocol right now,'' offensive coordinator Greg Roman said Saturday. ''And that's in the doctor's hands. When we know, you will probably know.'' Smith did not speak to reporters Saturday. For the fourth consecutive day, Smith practiced in a non-contact black jersey and took part in most of the drills involving the first-team offense. The NFL's third-ranked quarterback with a passer rating of 104.1, Smith has received positive reviews throughout the week. ''He's looked good, really sharp,'' Roman said. ''He's gotten plenty of practice time....
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