Mitchell (knee) remained sidelined for Thursday's practice, Nick Wagoner of ESPN.com reports.

EDGE Analysis

Mitchell missed the 49ers' Week 4 contest against the Cardinals and appears to be trending in the wrong direction for Sunday night's game against the Cowboys. Jordan Mason played 15 percent of the offensive snaps behind Christian McCaffrey last Sunday and would be in line for RB2 duties once again if Mitchell can't play.