Walker (coach's decision) won't suit up in Sunday's game against the Chiefs, David Newton of ESPN reports.
Walker had handled backup duties for the past three games behind Teddy Bridgewater, even seeing action in Week 8 after Bridgewater got hurt. Part of the reason Walker was active was his flexibility to play running back and receiver while Christian McCaffrey was hurt. Now that CMC is back in the lineup, Walker will shift backup duties to Will Grier for Sunday's contest.