Friday, 7 p.m. Talen Energy Stadium.
Records: Union, 4-3-3, 15 points; United, 3-4-4, 13 points.
TV: Univision.
Last game: United beat the visiting New York Red Bulls, 2-0, last Friday. The Union played to a 1-1 draw at Montreal on Saturday.
Coaches: United, Ben Olsen, 67-81-45; Union, Jim Curtin, 21-25-15.
Goals for: United, 13; Union 14.
Goals against: United, 13; Union 11.
About D.C. United: In 15 MLS games, United has a 7-5-3 record against the Union. . . . Chris Rolfe has scored four regular-season goals against the Union, tied for second among active MLS players.