Porter, Stephens-Howling inactive against Cowboys

The Arizona Cardinals are without starting outside linebacker Joey Porter and kick returner LaRod Stephens-Howlings for Saturday night's game against the Dallas Cowboys.

Porter has been sidelined with a triceps injury from last Sunday's loss at Carolina. Stephens-Howling, a rookie who also plays on the kickoff and punt teams and sees some action at running back, has been nursing a hamstring injury.

Dallas wide receiver Roy Williams had been listed as questionable with a groin injury but is active for the game.