The USSF has released the pairings for the First and Second Round of the Lamar Hunt US Open Cup. But considering the regional nature of the tournament, rather than seeding, the Seattle Sounders will have to wait until after the First Round is complete to discover their opponent and venue to defend the 2010 and 2009 Cups. That Third Round match will be on June 28th, just two days after the match with the Revolution.
Locally the Kitsap Pumas or the Portland Timbers U-23 squad will earn the right to travel to El Paso to face Chivas El Paso Patriots in a match up of PDL sides. This illustrates one of the problems with the lower levels of American soccer right now. That's a fairly short trip, as the West is relatively devoid of teams at the D3 and D4 level for the Open Cup. The two early round regional brackets feature several teams from So Cal and then one from Colorado, El Paso, Portland, and Bremerton. There are three MLS teams bracketed and so one of the MLS teams is likely to have a long trip, or force a barely pro or less team into a trip of a couple thousand miles.
Real Salt Lake, the Los Angeles Galaxy and the Sounders are all the MLS teams awaiting the results from this small in team quantity region waiting for the eight teams to become two. The other MLS sides are going to be in brackets more conducive to regionalization.