Wednesday, 7 p.m. at Talen Energy Stadium.
Records: Fire, 2-6-5, 11 points; Union, 6-4-5, 23 points.
TV: The Comcast Network.
Fire on the road: 0-4-2.
Union at home: 5-0-2.
Goals for: Fire, 11; Union, 23.
Goals against: Fire, 16; Union, 19.
Coaches: Fire, Veljko Paunovic, 2-6-5; Union, Jim Curtin, 23-26-17.
Last game: The Fire lost on Saturday at Colorado, 2-1. The Union lost to New York City FC, 3-2, at Yankee Stadium on Saturday.
This year: The host Fire beat the Union, 1-0, on April 2.
About the Fire: After tying the score on a goal by home-grown midfielder Joey Calistri in the 81st minute, Chicago surrendered the game-winner in the 89th minute during Saturday's loss in Colorado.