Njoku (ankle) returned to a limited practice Thursday, Jake Trotter of ESPN.com reports.
Njoku didn't practice Wednesday, but his return to a limited session one day later bodes well for his chances of being available Sunday against the Cardinals. That said, Njoku -- who caught four passes (on eight targets) for 77 yards and a TD in the Browns' Week 8 loss to the Seahawks -- likely will need to practice fully Friday in order to avoid a Week 9 injury designation.