D.C. United (9-10-11, 38 pts) at Vancouver Whitecaps (5-16-10, 25)

Where: BC Place.

When: 10 p.m. ET.

TV: Comcast SportsNet/DC, Direct Kick.

Online: MatchDay Live (mlssoccer.com).

Weather: 50 degrees, chance of rain.

DCU: Hamid; Korb, McDonald, Woolard, Burch; Najar, Kitchen, King, da Luz; Wolff, Brettschneider. Subs: Willis, White, Simms, Morsink, Quaranta, Davies, Ngwenya.

*Kitchen moves into defensive midfield in place of Simms, da Luz starts in place of Quaranta on left, Wolff and Brettschneider replace Davies and Ngwenya. Olsen balancing lineup needs and heavy calendar — first of four matches over 11 days.

Vancouver: Cannon; Rochat, Mitchell, DeMerit, Brovsky; Harvey, Thorrington, Koffie, Khalfan; Camilo, Tan. Subs: Nolly, Boxall, Jarju, Vagenas, Salgado, Salinas, Hassli.

Must win for DCU? No, but pretty close to it. A draw is the minimum requirement. Your pregame, in-game and postgame observations are welcome in our comments section.