Head coach Jay Gruden termed Kelley the Redskins' "first-string running back" Thursday, Master Tesfatsion of The Washington Post reports.
Although previous No. 1 back Matt Jones used the team's Week 9 bye to rid himself of a knee injury, Gruden will stick with Kelley for the foreseeable future. Coming off 87 yards and one touchdown on 21 carries in their last game on Oct. 30, Kelley has reeled off runs this year at a clip of 5.0 YPC, but the Vikings' eighth-ranked run defense may present a stumbling block for the undrafted rookie Sunday.