... Cowboys, faced off Sunday night, opening their seasons with a bang.

There were many storylines heading into the season opener:

“The Mike Shanahan Era” begins in Washington.

How will Donovan McNabb’s transition from the Philadelphia Eagles to Washington go?

Are the Cowboys a legitimate Super Bowl contender in 2010?

What chapter will be written in the history of this classic rivalry?

The game was by no means a “barn burner," but it did live up to the hype of the rivalry as it came right down to the wire.

Here are five things we learned from the matchup.

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