ARLINGTON, Texas -- Cowboys wide receiver Miles Austin tweaked his hamstring in the third quarter of Sunday's victory over the St. Louis Rams. Austin was hurt as he jumped up to make a catch, ruled incomplete.
Austin, who did not return, finished with two catches for 22 yards.
He has a history of hamstring injuries and does extra stretching in an attempt to prevent them from reoccurring.
The Cowboys have gone to great lengths to prevent these injuries during training camp and regular-season practices, from monitoring how much running a player does with an electric device, to limiting snaps in practice to keep players fresh.
Austin endured hamstring injuries all of last season but still finished with 66 catches for 943 yards and six touchdowns.
"We decided to keep him out of it," Garrett said. "We'll just evaluate it over the next couple of days."
In a surprise decision, defensive end Anthony Spencer was inactive for the game with a sore left knee. Spencer has experienced knee soreness all week, including Sunday morning, which prevented him from trying to workout in pregame warmups.
"It's just real frustrating for this to be the same, lingering problem," Spencer said. "It is what it is. I'm just handling it the best way I can."
Spencer said he's undergone second and third opinions on his knee and things have not improved. Spencer has some ligament damage on the inside of his knee and there is some bone-on-bone issues, but Spencer said last week he doesn't need microfracture surgery. If he had that, he would miss a year.
"Hopefully it gets better, I felt pretty good going into the [Week 2 game at Kansas City]," Spencer said. "I haven't done that much work with it so, it's just sore from the game, I believe, and I'll play it by ear. Hopefully it gets better and if it doesn't then we'll keep going and do what we got to do to get going for the games."
Cornerback Morris Claiborne played with a harness to support his left shoulder and didn't report any problems.
Defensive end DeMarcus Ware, who suffered a stinger in last week's game at Kansas City, left the game briefly, but returned with no problems.