Report: 49ers' Smith seeks second concussion opinion

San Francisco 49ers quarterback Alex Smith plans to seek a second opinion for his concussion, according to ProFootballTalk.com.

Smith suffered a concussion against the St. Louis Rams on Sunday. The 49ers are off until they face the Chicago Bears next Monday night.

Before he can be cleared to play, he must be given an OK from an independent neurologist. Even so, Smith is seeking an other opinion.

If Smith can't play, Colin Kaepernick will start for the 49ers.