The Eagles will visit a Cowboys team this weekend that reportedly will be without quarterback Tony Romo, according to ESPN.
Romo will miss the rest of the season because of a back injury, ESPN.com reported.
Romo overcame a back injury Sunday to rally the Cowboys past the Redskins, but he will not be able to play the rest of the season, a source told ESPN's Adam Schefter.
The winner of Sunday night's game at Dallas will win the NFC East.
Kyle Orton likely will start at quarterback for Dallas.
An MRI was scheduled for Monday after Romo suffered a back flare-up that looked like a leg injury. Romo was limping around the possession before a drive that ended with a fourth-down pass to DeMarco Murray and gave Dallas a 24-23 win over the Redskins.
"It looked like he got leg-whipped or kicked somehow," coach Jason Garrett said. "He certainly was hobbling around a little bit, and you just suck it up, pull your sock up, spit on it and keep going."
Romo, who had offseason back surgery but said the pain was coming from the opposite side of that procedure, has lost the past two finales against the Giants and Redskins, and dropped a third against the Eagles in 2008. Those were all on the road and came after losses the week before.
Romo had surgery in April to remove a cyst from his back and did not take a snap until the team reached training camp in July.
Romo was limping as he carried out fakes on running plays. In the fourth quarter, he appeared to be in trouble even more after spinning free from the pocket on a third-down throw to Miles Austin. Romo appeared to kick the back of his leg as he escaped trouble, but he did not miss a snap.
Romo completed 17 of 27 passes for 226 yards, including the game-winning touchdown to DeMarco Murray on fourth-and-goal from the Washington 10 with 1:08 to play.