Cowboys rookie RB DeMarco Murray left Sunday night's game against the Giants with a right ankle fracture and a high ankle sprain.
Murray had five carries for 25 yards and one catch for six yards before the injury.
The fourth-round pick out of Oklahoma has been one of the league's top running backs since he took over as the team's starter. Since Week Seven, Murray had averaged 114.1 rushing yards a game.
Felix Jones took over for Murray as the team's primary back, and he is the only other running back on the roster. The team waived Tashard Choice and placed Phillip Tanner on injured reserve.
The way we see it
Losing Murray, one of the league's biggest surprises, is a tough blow for the Cowboys as they attempt to win the NFC East. Jones is not an every-down back and the team will need to add a veteran.