Cook (ankle) will not play in Sunday's game against the Cardinals, Darren Urban of the Cardinals' official site reports.
Unable to practice throughout the week, Cook will now miss a second straight game. Josh Hill played 68 percent of snaps on offense in last week's 36-25 win over Chicago, with Dan Arnold chipping in 24 percent and fullback Zach Line (36 percent) handling his largest share of the season.