[U.S. OPEN CUP] The Seattle Sounders will look to return the Lamar Hunt U.S. Open Cup final for a fourth consecutive year when they host Chivas USA at sold-out Starfire Stadium in Tukwila, Wash. In Wednesday's other game, Sporting Kansas City will look to return to the championship game for the first time since 2004 when they travel to the Philadelphia Union.

The Sounders are 12-0-0 against MLS opposition en route to three straight Open Cup titles since joining the league in 2009. In its last season in the USL First Division, Seattle beat Chivas USA and eventually was knocked out in a shootout by the Charleston Battery in the semifinals.

No team has ever won four straight titles. The Fall River Marksmen/New Bedford Whalers (1930-32), Stix, Baer & Fuller/St. Louis Central Breweries (1933-35) and New York Greek Americans (1967-69) won three in a row.

Sporting Kansas City is making its third appearance in the semifinals of the U.S. Open Cup and first since 2004, when the team then known as the Wizards went on to win the tournament with a 1-0 overtime victory over the Chicago Fire at Arrowhead Stadium.