ARLINGTON, Texas -- Cowboys outside linebacker Anthony Spencer missed Monday night's game against Chicago with a right pectoral muscle injury.
Spencer said he tried to work out Sunday afternoon, but it just made the injury worse.
"Did some stuff (Sunday) and it wasn't strong enough," Spencer said. "It just got a little more sore."
This was the first game Spencer has missed this season, but with a bye this week and most likely some limited practice time the week after that, Spencer could be ready for the Baltimore Ravens contest Oct. 14.
"It's what I do, it's my life," Spencer said. "By not playing, it's like saying I can't live."
Cowboys owner Jerry Jones said he expects nose tackle Jay Ratliff to return to action after the bye week. Ratliff hasn't played this season with a high ankle sprain.
During Monday's loss, Cowboys inside linebacker Bruce Carter said he suffered a hip pointer. He left the game briefly and took a pain-killing injection before returning.
Safety Gerald Sensabaugh played with a sore calf but it didn't cause him any problems.