IRVING, Texas — Tony Romo's season is over, and the Dallas Cowboys will have to win without their star quarterback in a third straight playoffs-or-bust finale. Coach Jason Garrett said Romo had back surgery Friday, and Kyle Orton will start when Dallas faces Philadelphia on Sunday night with the NFC East title and a postseason berth on the line. Garrett said Romo underwent treatment all week in hopes of playing after injuring his back in a season-saving 24-23 victory against Washington.