Where: Toyota Park, Bridgeview, Ill.
When: 8:30 p.m. ET
At stake: Berth in the championship match against the Portland Timbers or Real Salt Lake. If Portland advances, the final will be played Sept. 24 at Jeld-Wen Field. If RSL goes through, Rio Tinto Stadium is the venue Oct. 1.
DCU: Willis; Korb, Jakovic, Woolard, Riley; DeLeon, Kitchen, Thorrington, Porter; Silva, De Rosario. Subs: Hamid, Kemp, White, Pontius, Nyassi, Jeffrey, Doyle.
CHI: Johnson; Anibaba, Berry, Soumare, Segares; Nyarko, Larentowicz, Alex, Duka; Rolfe, Magee. Subs: Tornaghi, Jumper, Pause, Paladini, Lindpere, Amarikwa, Anagono.
Your pregame, in-game and postgame thoughts are welcome in our comments section.