Alex Smith practices again with San Francisco 49ers


Though it's not official, signs point to Alex Smith starting for the San Francisco 49ers on Monday night.

A four-part series on player health and safety with reporter Andrea Kremer aired Tuesday through Friday on NFL Network:

Tuesday: Football's safety issues
Wednesday: Virginia Tech's helmet technology, The "Hit System"
Thursday: Inside Darrelle Revis' rehab
Friday: The lack of common safety standards in youth football

» For more information on player health and safety, visit

The quarterback -- who suffered a concussion on Sunday -- practiced in a black (non-contact) jersey for a fourth consecutive day on Saturday, according to Matt Barrows of The Sacramento Bee. 

Barrows wrote that Smith's Saturday practice "suggests that he's playing on Monday but doesn't quite clinch it."

49ers coach Jim Harbaugh said Friday that Smith was making "some progress," but added it's "in the doctor's hands." The quarterback is listed as questionable.

Smith was knocked out of the Niners' 24-24 tie with the St. Louis Rams after taking a hit to the back of the helmet at the end of a 4-yard scramble. He completed a touchdown drive, but didn't return after telling the team he was experiencing blurred vision.

The 6-2-1 Niners face the 7-2 Chicago Bears in a conference showdown on Monday night. Jason Campbell will start for the Bears in place of Jay Cutler, who suffered a concussion of his own in Week 10.

Follow Dan Hanzus on Twitter @danhanzus.