Dallas Cowboys wide receiver Miles Austin did not practice all week due to a strained hamstring and the starter has been ruled out for Sunday's Week 4 game against the San Diego Chargers.

Austin exited Sunday's 31-7 win over St. Louis due to the injury, being held to just two catches for 22 yards for the game.

Reserve wideout Dwayne Harris, who is bothered by a hip pointer, also has yet to practice this week, but he is listed as questionable.

If he and Austin aren't able to go against the Chargers, rookie Terrance Williams would likely see the majority of snaps opposite Dez Bryant.

Austin had missed six games in 2011 due to lingering hamstring issues.

All-Pro defensive end DeMarcus Ware, battling a shoulder stinger, was a limited participant all week and is listed as probable.