Kennedy Igboananike scored a pair of goals in the final four minutes to send the Chicago Fire to a record-tying 11th Semifinal appearance.
2015 Quarterfinals
2015 US Open Cup Quarterfinals: Sporting KC pulls away late from shorthanded Houston Dynamo, 3-1 (video)
After falling behind to a shorthanded Houston Dynamo team, Sporting Kansas City scored three second half goals to punch their ticket to the final four.
2015 US Open Cup Quarterfinals: 10-man Philadelphia Union beat New York Red Bulls in PKs to reach third Semifinal in four years (video)
The Philadelphia Union played a man down for 80 minutes but managed to reach penalty kicks where they defeated the Red Bulls 4-3 to advance to the Semifinals for the second year in a row.