Forwards Ante Razov and Damani Ralph, who led the Fire in scoring during the regular season, scored both goals as Chicago won by an aggregate score of 4-0 following their 2-0 win in Game One on Nov. 1 at RFK Stadium. The Fire, the top seed in the East, improved their all-time home playoff record to 12-1-1.
Chicago, which has captured the Lamar Hunt U.S. Open Cup championship and the 2003 Supporters' Shield with the league's best regular-season record, is one step away from advancing to MLS Cup 2003. The Fire are looking to become the first team to capture all three honors in one season.
D.C. United needed to win by at least two goals to force a tie.
Notable deaths of 2014 [PHOTOS]