D.C. United vs. New England Revolution

What: U.S. Open Cup quarterfinal.

Where: Maryland SoccerPlex, Boyds.

When: 7 p.m. Live video: www.revolutionsoccer.net

At stake: Aug. 7 semifinal at Chicago Fire (MLS) or Orlando City SC (USL, third division).

Wednesday’s other matches: Orlando at Chicago, 8:30; Portland Timbers (MLS) at FC Dallas (MLS), 9; Carolina RailHawks (NASL, second division) at Real Salt Lake (MLS), 9:30.

Outlook: With a 2-11-3 regular season record, United is pouring all efforts into the 100th annual tournament, which is open to teams from all levels of American soccer. D.C. advanced by defeating the third-division Richmond Kickers on penalty kicks after a 0-0 draw and MLS’s Philadelphia Union, 3-1, two weeks ago. Eastern Conference rival New England (5-5-5 in league play) posted nine combined goals in beating the third-tier Rochester Rhinos and MLS’s New York Red Bulls. Kelyn Rowe, a second-year midfielder, scored twice in each outing. United ousted the Revolution in the 2008 semifinals at RFK Stadium. United’s Dwayne De Rosario, who recorded a hat trick in the previous Open Cup game, is expected to play after sitting out Saturday’s league match against the San Jose Earthquakes with a hip flexor strain. Chris Korb and Carlos Ruiz are available after serving Open Cup red-card suspensions. Alain Rochat, acquired from Vancouver this month, is not eligible until the semifinals because of international clearance issues. The sides have met once in the regular season – a 0-0 draw June 8 at Gillette Stadium in Foxborough, Mass.

— Steven Goff