The Vikings are expected to demote FS Jamarca Sanford into a special teams-only role in 2012.
Vikings FS Jamarca Sanford left Sunday's game with a concussion and did not return.
Jamarca Sanford will open the season as the Vikings' starting free safety.
Jamarca Sanford is expected to be the Vikings' starter at strong safety in Saturday's third preseason game.
The Vikings could be without safties Madieu Williams (concussion), Jamarca Sanford (concussion) and Tyrell Johnson (knee) this weekend.
Jamarca Sanford will start Sunday night's preseason game at strong safety in place of Tyrell Johnson.
Jamarca Sanford is getting extensive reps with the first team at strong safety.
Jamarca Sanford is expected to compete for Tyrell Johnson's starting strong safety job this offseason.
Vikings rookie S Jamarca Sanford made his first career start against the Bengals Sunday.
Vikings signed seventh-round S Jamarca Sanford to a multi-year contract.