Cowboys may find out what they can do without RomoDallas Cowboys quarterback Tony Romo slips on the turf while scrambling with the ball during the second half of an NFL football game against the Washington Redskins in Landover, Md., Sunday, Dec. 22, 2013. (AP Photo/Alex Brandon)
IRVING, Texas (AP) -- Tony Romo flashed a thumbs-up as he walked off the field after a season-saving win in Washington, then put his right index finger in the air.
The Dallas quarterback wasn't trying to say the Cowboys were No. 1 - he knows better. He was saluting thousands of celebrating Cowboys fans, and telling them ''one more.''
Romo didn't look like someone who planned to let his latest battle with back pain keep him off the field for the Cowboys' third straight finale with the NFC East title on the line, this time against Philadelphia on Sunday night.
An MRI was scheduled for Monday after a back flare-up that looked like a leg injury when Romo limped 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's eighth elimination game - he has a 1-6 record in the previous seven - will be at home after an uplifting win that followed a crushing loss to Green Bay.
''The more times you put yourself in these situations, you have to keep getting better,'' Romo said. ''You have to have a stronger belief in yourself than the doubt of other people.''
The doubters will have plenty of fodder this week.
The Cowboys had to scramble from nine points down in the fourth quarter to beat a team going nowhere after six straight losses. The Eagles had nothing significant to play for but blew out Chicago anyway, 54-11, to keep the Bears from wrapping up a playoff berth as NFC North champions.
It will be hard to remember that Dallas is the only team to keep Philadelphia out of the end zone this season in a 17-3 win in which the Cowboys held Nick Foles to 11 of 29 passing for 80 yards before knocking him out of the game with a concussion.
Since then, Dallas has given up more than 600 yards in a game twice; an NFL-record 40 first downs in a blowout loss to New Orleans; and eight straight scoring drives in an embarrassing defeat at Chicago.
But the league's worst defense came through late against the Redskins, forcing a punt to set up the winning drive and getting a stop to clinch the win after Romo's scoring toss to Murray with 1:08 remaining on fourth-and-goal from the 10.
''I'm proud of that bunch, too,'' owner Jerry Jones said. ''They deserve some good things to happen to them.''
Linebacker Sean Lee, the team leader with four interceptions despite missing four games, could return against the Eagles after missing the past two games with a sprained neck.
Cornerback Morris Claiborne might be available as well. The top 10 pick from 2012 has missed six of the past seven games with hamstring issues, and his recovery was set back when he had to leave the team after the death of his father and the birth of his child.
''We just had a sense of urgency about ourselves,'' defensive tackle Jason Hatcher said. ''We just played with a lot of new guys back there and we knew what was at stake. We had to win this one, and we scratched and clawed.''
And set up yet another winner-take-all finale against an NFC East rival.
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