Kirk caught all six of his targets for 91 yards and completed a 33-yard pass in Sunday's 31-17 win over the 49ers.
With DeAndre Hopkins (hamstring) and A.J. Green (COVID-19) both out of the lineup, Kirk stepped up as the Cards' No. 1 receiver, leading the team in catches, targets and receiving yards. He also tossed a pass to Antoine Wesley on a gadget play late in the first quarter that nearly went for a touchdown, but Wesley went out of bounds just shy of the goal line. Kirk has caught at least three passes in eight of nine games this season, giving him a fairly secure floor, but his role in the offense will depend on the availability of Hopkins and Green heading into a Week 10 clash with the Panthers.