This is going to be a rematch of the 2011 MLS Cup between the Houston Dynamo and Los Angeles Galaxy. The Galaxy had the 8th best record during the MLS and the Houston Dynamo had the 9th best. That's why they play the game.

From the Galaxy:
Despite rainy conditions and a two goal effort from Seattle, the LA Galaxy were able to hold their ground to win the Western Conference Championship and advance to MLS Cup 2012.
With the Houston Dynamo's aggregate victory over D.C. United earlier today, the stage is now set for the LA Galaxy to host MLS Cup 2012 at The Home Depot Center, December 1 at 1:30 p.m. PT.
The best way to get access to the best MLS Cup seats at the lowest price is to become a 2013 Season Ticket Holder. Catch every 2013 regular season game for only $12.50/game in the upper level or $20/game in the lower bowl. Get your season tickets now in order to reserve your tickets to MLS Cup 2012 before it sells out! Click here or call 1.877.3.GALAXY (342.5299) for more information.

A limited number of tickets are available to VISA cardholders starting Monday, Nov. 19 at 10 a.m. PST. VISA cardholders may purchase up to four tickets to MLS Cup, available while supplies last, through this link or by calling 877-3GALAXY during regular business hours.
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