Here are three reasons why the Cowboys will lose tonight:

* If you give Donovan McNabb time to throw, then he will pick you apart, even though his top three receivers are DeSean Jackson, Greg Lewis and Hank Baskett. He passed for nearly 400 yards last week.

* Brian Westbrook is the most underrated player in the NFL, and the Cowboys don;t really have anyone who can stop him. He's capable of having 100 yards rushing and receiving and dominating the game because Andy Reid is creative about moving him around the formation and creating mismatches that put him in position to make big plays.

* Defensive coordinator Jim Johnson's gambling, blitzing style confuses the Cowboys' offensive linemen just like it did last December - the Eagles won that game 10-6 - and Philadelphia consistently pressures Tony Romo leading to another poor performance.