Dallas Cowboys defensive end Anthony Spencer is inactive against St. Louis because of his troublesome left knee.
Spencer played for the first time last Sunday against Kansas City but practiced only once this week while dealing with soreness. He had arthroscopic surgery July 25 and missed all of the preseason and the opener against the Giants.
George Selvie, who didn't join the Cowboys until several days into camp, will make his third straight start in Spencer's place Sunday.
The Rams have three linemen inactive in Barrett Jones, Rodger Saffold and Brandon Washington. Newly acquired tackles Max Starks and Mike Person are active.
Running back Joseph Randle and linebacker Ernie Sims are inactive for the second straight week for Dallas.
AP NFL website: www.pro32.ap.org