This is a preseason game. Even though the place is all season tix apparently (as I recall), a preseason game shouldn't be a big deal. You might be better off arranging ahead of time on StubHub:

http://www.stubhub.com/washington-re...vent_id=382591

I'm sure someone else will know more, but for a preseason game I can't imagine there will be nearly as big of a scalper scene where you would get a deal on the already started game. (After all, these games are meaningless. )