D.C. United may have just won the U.S. Open Cup title on Tuesday, but it has just three wins — and needs one more to avoid finishing with the fewest victories (four) in MLS history. (Matt Gade/Associated Press)

D.C. United
vs. Chicago Fire

Where: RFK Stadium.

When: 8:20 p.m.

TV: NBC Sports Network.

Records: United 3-21-6, 15 points; Fire 11-12-7, 40.

D.C. probable starters:
GK Bill Hamid; Ds Chris Korb, Conor Shanosky, Daniel Woolard, Dennis Iapichino;
MFs Collin Martin, Marcelo Saragosa, Jared Jeffrey, Luis Silva, Kyle Porter; F Conor Doyle.

Chicago probable starters: GK Sean Johnson; Ds Jalil Anibaba, Jeff Larentowicz, Austin Berry, Gonzalo Segares; MFs Patrick Nyarko, Egidio Arevalo Rios, Logan Pause, Dilly Duka; Fs Mike Magee, Juan Luis Anangono.

Outlook: United enters the final stretch of the MLS regular season on an emotional high after claiming the U.S. Open Cup championship Tuesday night at Real Salt Lake, 1-0. The club’s next objective, with four matches remaining, is to avoid finishing with the fewest victories in league history (four). United is 1-10-3 in the past 14 MLS games and winless since beating Montreal on Aug. 3. With 20 goals, United has scored just two more than Magee, Chicago’s league MVP candidate, and one more than MLS leader Marco Di Vaio of Montreal. The Fire, 1-2-3 in the past six outings, is eighth in the Eastern Conference but just two points out of a playoff berth.

— Steven Goff