 A year after a public argument between Seattle and D.C. United ownership over the fairness of the bidding process to host the 2009 U.S. Open Cup Final — which D.C. United hosted — Sounders FC was successful in its bid to host the 2010 final . For the 2009 final , D.C. United drew an attendance of 17 @,@ 329 through extensive marketing efforts . Seattle began selling tickets to the 2010 final on September 7 and within six days 22 @,@ 000 had already been sold . 
