Shelton (hamstring) has been ruled out for Thursday's game against the Buccaneers, Tommy Yarrish of the Cowboys' official site reports.
Analysis:Shelton is considered week-to-week due to a hamstring injury he picked up in Week 4 against the Texans, so his absence for Thursday's game isn't a surprise. His next chance to suit up is Week 6 against the Packers on Sunday, Oct. 18, though Shelton would have to log at least a limited practice to have a legitimate chance of returning.