Dallas Cowboys running back DeMarco Murray has been ruled out for this week because of a foot injury, ESPN Dallas reported Monday. The Cowboys had feared he may have sustained ligament damage and would be out for the year, but X-rays taken after Sunday's loss to the Baltimore Ravens were negative. Murray was scheduled to have an MRI Monday morning but the results are not yet known. Murray sustained the injury in the first half in which he rushed for 90 yards. After gaining three yards on one carry in the third quarter, he was taken out of the game. He was replaced by Felix Jones, who ran for 92 yards on 18 carries despite missing part of the second half with cramps due to dehydration.