DeMarco Murray is injured again. (Tom Pennington / Getty Images)

The Dallas Cowboys churned out a season-high 227 rushing yards in Sunday’s loss to Baltimore — the most ever given up by the Ravens defense.

DeMarco Murray led the charge with 93 yards on only 14 carries, but a foot injury cut his day short and now has the Cowboys fearing a diagnosis that could keep their starting running back out for multiple weeks beyond the upcoming bye week.

Initial X-rays taken Sunday were negative, but Murray was scheduled to undergo an MRI Monday morning that could provide more definitive results.

Todd Archer of ESPN Dallas reports the team does not believe Murray suffered a season-ending Lisfranc injury, but the Cowboys are concerned that he may have ligament damage.

Murray exploded with a 253-yard game against St. Louis last October, but ended the season early with a broken ankle. He supplanted Felix Jones as the team’s starter and despite spotty offensive line play, remains a big-play threat.

“That was their decision to pull me out,” Murray said after the game (via the Dallas Morning News), noting that he wanted to return to the game. “It’s a long season. It’s only one game, so I have to do what’s best for the team.”

Jones seized a rare opportunity with 92 yards and a touchdown on 18 carries against the Ravens, but was cramping so badly in the second half that he needed an IV. Jones has struggled in a featured role before, and if Murray misses significant time, there’s no guarantee he can fill the void week-to-week.

Phillip Tanner and Lance Dunbar each saw carries in the fourth quarter and could be used more in support of Jones with Murray on the shelf.

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