San Francisco 49ers quarterback Alex Smith, who suffered a concussion on Sunday against the St. Louis Rams, has passed concussion tests this week and is on track to start Monday night against the Chicago Bears, a league source told ESPN NFL Insider Adam Schefter.
Smith was knocked out of the game on Sunday, which ended in a 24-24 tie.
Smith went through position work in a non-contact black jersey Wednesday. 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.