The Fire's slim playoff hopes slid further into the distance after a seventh consecutive loss in league play and eight overall against MLS competition. Following Wednesday night's US Open Cup disappointment, both Nemanja Nikolic and Aleksandar Katai started on the bench.
The Fire mustered one shot one goal but played a more cohesive defensive game with Bastian Schweinsteiger again deployed as a third centerback. Bradley Wright Phillips scored in the 55th minute following a Dax McCarty turnover to provide all of the scoring in the contest.
Michael de Leeuw made his long awaited return from injury in the 73rd minute.
The 1-0 defeat dropped their record to 6-14-5 on the season.
Sanchez; Hasler, Kappelhof, Schweinsteiger, Vincent, Corrales; Conner, McCarty, Bronico (Katai 58'), Edwards (Nikolic 61'); Solignac (de Leeuw 73')
Subs not used: Cleveland, Mihailovic, Gordon, Dean