Because in a change of plans the Cowboys plan on playing backup quarterback and four-time Pro Bowler Tony Romo, who hasn't played all year after suffering another serious back injury during the preseason.
Dak Prescott will get the start and a shot to break the NFL record for wins by a rookie quarterback, but according to a report from ESPN's Adam Schefter, Romo and Mark Sanchez are expected to see the field in a game that will have no effect on their standing as the NFC's No. 1 seed.
Cowboys' QB Tony Romo is expected to play Sunday vs Eagles for the first time since Thanksgiving 2015, sources tell @toddarcher and me.
— Adam Schefter (@AdamSchefter) December 30, 2016
And that could greatly affect the futures of Romo and the franchise.
It's likely that, should Romo play instead of Sanchez in mop-up duty, his performance won't change how teams feel about him in the offseason—especially if he just sees the field for a quick three-and-out.
But if the game gets out of hand early and Romo leads two spectacular touchdown drives, teams frothing at the mouth for a quarterback this offseason—say, the Houston Texans or the Denver Broncos—might get more competitive for his services, netting the Cowboys a bigger trade return.
On the other hand, should Romo play and seriously re-injure himself, the Cowboys will have tanked the demand for a once valuable trade chip.