Mitchell had three carries for two yards and failed to bring in his lone target in Sunday's 31-17 loss to the Bengals.
Mitchell was the only 49ers backup running back to receive carries for the second straight week. The 25-year-old wound up logging seven snaps on offense, but he barely made an impact in the box score Sunday. Mitchell's inconsistent play combined with a smaller role on offense this year should keep him out of fantasy lineups when San Francisco returns from its bye to face the Jaguars on Sunday, Nov. 12.