Zlatan Ibrahimovic marked his first start for LA Galaxy with the winning goal in a narrow 1-0 victory over Chicago Fire at Toyota Park on Saturday.The former Manchester United striker popped up with the only goal of the game when he nodded in from Ashley Cole's cross late in the first half.It was somewhat of a Manchester United reunion in Illinois as Ibrahimovic lined up against former Old Trafford team-mate Bastian Schweinsteiger. MATCH FACTS Chicago Fire: Sanchez, Kappelhof, Campbell, Schweinsteiger, Lillard, Vincent, Collier (Bakero 85), McCarty, Tchani (Campos 70), Nikolic, Gordon (Katai 61).Subs not used: Conner, Adams, Ramos, McLain.Goals: NoneBookings: Gordon, VincentLA Galaxy: Bingham, Feltscher, Steres, Skjelvik, Cole, Alessandrini (Pontius 66), Kitchen, Dos Santos, Lletget (Husidic 85), Ibrahimovic (Boateng 80), Kamara.Subs not used: Romney, Carrasco, Ciani, Vom Steeg. Goals: Ibrahimovic 45+1Bookings: Cole, Alessandrini, KitchenLA Galaxy started brightly and had the ball in the back of the opposition's net twice in the opening minute.However, on both occasions, striker Ola Kamara was flagged adjudged to have been offside.The visitors enjoyed a fairly comfortable opening period, limiting their opponents to just one shot on goal before Ibrahimovic struck on the stroke of half-time.Cole, who assisted the Swede's winner against new rivals Los Angeles FC on his memorable debut, delivered a cross that Ibrahimovic directed back across goal and into the net.LA Galaxy goalkeeper David Bingham was forced to make a number of saves to preserve his side's lead, including a fierce strike from Chicago Fire's Aleksandar Katai.Galaxy came out of that period of pressure unscathed and were assured of victory when a vital interception by Daniel Steres denied Katai a chance at an equaliser late on.