SANTA CLARA, Calif. (AP) — San Francisco 49ers quarterback Alex Smith went through position work in a non-contact black jersey Wednesday, his status still unclear for Monday night's NFC showdown with the Chicago Bears after he sustained a concussion Sunday against the Rams.

Coach Jim Harbaugh kept an eye on Smith from several yards away as he worked with backup Colin Kaepernick and No. 3 QB Scott Tolzien to get his reps.

Smith would have had to pass concussion tests given by a neurologist to get this far and return to the practice field, but there are still further steps in the process for him to be medically cleared for game action.