LOS ANGELES -- Jeff Wilson suffered a shoulder injury and is questionable to return to Sunday's season finale, leaving veteran Alfred Morris and second-year pro Matthew Dayes as the 49ers' only running backs against the Rams.
The 49ers could lean on fullback Kyle Juszczyk, who has just six carries for 21 yards this season, if Morris or Dayes also are hurt, and Wilson can't return.
Wilson had carried the ball just three times for 9 yards as the 49ers fell behind 14-0 at Los Angeles Memorial Coliseum. The undrafted rookie entered the game with 63 carries for 257 yards after taking over for Matt Breida, who had struggled with an ankle injury for most of the season.