Photo Gallery - Marshawn Lynch New Era Hats

Seahawks kicker Steven Hauschka nails a 24-yard field goal to give Seattle a 13-12 lead with under two minutes left in the game.

Late afternoon light streams through the huge glass windows at one end of AT&T Stadium.

It was up to Seattle's defense to protect the slim lead at the end of the game and they were up to the task. Bruce Irvin, who was celebrating a birthday, sacks Dallas quarterback Matt Cassel.

Seattle's Cliff Avril takes down Matt Cassel on the Cowboys' final drive.

Seattle defensive linemen Demarcus Dobbs and Cassius Marsh celebrate as the defense protected the late lead. The defense allowed less than 100 yards passing on the day.

In the happy Seahawks locker room following the game, Bruce Irvin is recognized for his sack and also for his birthday which both happened on Sunday.