The 49ers are already dipping into their practice squad for running back help. In Week 1 they lost running back Elijah Mitchell for two months to an MCL sprain. In Week 2 they lost RB Tyrion Davis-Price for a few weeks to a high ankle sprain. Now with the RB spot running thin on their active roster, they’re elevating RB Marlon Mack after he joined the practice squad ahead of Week 2.
Mack will be either the 49ers’ second or third RB behind Jeff Wilson Jr. Davis-Price held the RB2 role vs. the Seahawks while undrafted rookie Jordan Mason played solely on special teams. It’ll be a battle in practice between Mack and Mason for carries Sunday night in Denver.
