Tony Romo will not play again this season, according to Adam Schefter of ESPN:

Backup Kyle Orton, whose last start was in Week 17 of the 2011 season, will replace Romo’s in the finale against the Eagles at the House That Jerry Built, and in the postseason should Dallas win.

UPDATE: In a hastily-called news conference, Cowboys coach Jason Garrett says that Romo has not been ruled out for Sunday’s game and that his health will be monitored throughout the week.

UPDATE No. 2: Adam Schefter’s response on SportsCenter: “Tony Romo is done for the season. That you can take to the bank.”