Colorado extends Arizona skid to 18 games with 34-0 shutout

Arizona linebacker Jerry Roberts, right, stops Colorado wide receiver Dimitri Stanley after a short gain in the first half of an NCAA college football game Saturday, Oct. 16, 2021, in Boulder, Colo. (AP Photo/David Zalubowski)

Colorado linebacker Carson Wells celebrates as he crosses into the end zone to score a touchdown on a pass interception against Arizona in the second half of an NCAA college football game Saturday, Oct. 16, 2021, in Boulder, Colo. (AP Photo/David Zalubowski)

Arizona quarterback Gunner Cruz rolls out to pass the ball against Colorado in the first half of an NCAA college football game Saturday, Oct. 16, 2021, in Boulder, Colo. (AP Photo/David Zalubowski)

Arizona running back Stevie Rocker Jr., top, is dragged down by Colorado linebacker Quinn Perry in the first half of an NCAA college football game Saturday, Oct. 16, 2021, in Boulder, Colo. (AP Photo/Geneva Heffernan)

Colorado wide receiver Brenden Rice, left, pulls in a pass for a long gain over Arizona cornerback Christian Roland-Wallace in the first half of an NCAA college football game Saturday, Oct. 16, 2021, in Boulder, Colo. (AP Photo/David Zalubowski)

Colorado special teams player Trevor Woods, top, celebrates with teammate Michael Harrison (83) after scoring a touchdown after picking up a blocked punt in the second half of an NCAA college football game against Arizona, Saturday, Oct. 16, 2021, in Boulder, Colo. (AP Photo/David Zalubowski)

Colorado linebacker Nate Landman, left, comes in to stop Arizona running back Michael Wiley after a short gain in the second half of an NCAA college football game Saturday, Oct. 16, 2021, in Boulder, Colo. (AP Photo/David Zalubowski)

Colorado cornerback Tyrin Taylor, front right, runs for a touchdown after picking off a pass as Arizona wide receiver Dorian Singer, left, pursues in the second half of an NCAA college football game Saturday, Oct. 16, 2021, in Boulder, Colo. (AP Photo/David Zalubowski)

Colorado quarterback Brendon Lewis rolls out to make a pass against Arizona in the first half of an NCAA college football game Saturday, Oct. 16, 2021, in Boulder, Colo. (AP Photo/Geneva Heffernan)

Arizona quarterback Gunner Cruz, left, runs for a short gain against Colorado in the second half of an NCAA college football game Saturday, Oct. 16, 2021, in Boulder, Colo. (AP Photo/David Zalubowski)