Hector Jimenez gave
Despite being reduced to 10 men the home side extended their lead through Mike Magee (73).
But goals from Steven Lenhart (76), a Khari Stephenson penalty (82) and Alan Gordon (90) secured all three points for the visitors.
New York Red Bulls came from behind to extend their Eastern Conference lead to two points with a 1-1 draw against Chivas USA.
The visitors took the lead through Juan Pablo Angel but Dan Richards earned the home side a point.
Justin Meram and Emilio Renteria scored for
FC Dallas led through a goal from Matt Hedges (41) but Sebastian Grazzini (45) and Marco Pappa (63) scored to seal a 2-1 win for
