IRVING, Texas -- Dallas Cowboys linebacker Sean Lee will not play Thursday against the Oakland Raiders. Lee was ruled out of the Thanksgiving Day game with a hamstring injury. There had been an outside shot Lee would play but he did not practice during the week. The Cowboys want to make sure he will be ready for the final four games of the regular season against NFC opponents. With an 11-day break before they play the Chicago Bears on Dec. 9, the Cowboys wanted to give Lee as much time as possible to return from the injury he suffered Nov.