Bale, Arango put LAFC four points clear in Western Conference
Gareth Bale came off the bench to score his first goal in the MLS and seal the three points for LAFC, after Cristian Arango's well-taken opener.
With Giorgio Chiellini also starting, Steve Cherundolo's side absorbed pressure after Arango scored in the 56th minute, firing past Tim Melia at his near post with a confident finish on the run.
Bale was able to settle the result in transition for LAFC in the 83rd minute, driving low into the corner after creating separation from Nicolas Isimat-Mirin.
The win puts LAFC four points ahead of second-placed Austin FC in the West, who are still to face New York RB on Sunday, while Nashville and Cincinatti played out a 1-1 draw.
FC Dallas kept their hopes of a top-four finish in the West alive meanwhile, emerging 1-0 victors away to Real Salt Lake, while Minnesota moved to third with their 2-1 victory over Houston Dynamo.
The Seattle Sounders are now a point from the playoff spots, overcoming Kelyn Rowe's 47th-minute red card to defeat the Colorado Rapids 2-1, while the Portland Timbers beat the SJ Earthquakes with the same result.
Philadelphia Union hold a one-point lead atop the Eastern Conference, with Daniel Gazdag's 39th-minute goal handing them a critical 1-0 win away to Orlando City.
The stingiest defence in the MLS held out to maintain their gap to New York City, who beat Inter Miami 2-0 via goals from Maximiliano Moralez and Heber.
CF Montreal moved back to third, with a Romell Quioto brace handing them a 2-1 win over DC United, while Toronto FC claimed a shock 4-0 win over a ten-man Charlotte FC.
Chicago Fire took advantage to move two points from the playoff spots, with Xherdan Shaqiri helping them to a 3-1 win over the Vancouver Whitecaps, while Columbus Crew and New England Revolution played out a goal-less draw.