Rotating forwards Cengiz Ünder and Jeremy Ebobisse into the starting lineup paid off Wednesday for the Los Angeles Football Club.

Each attacker scored, as did fellow forward Denis Bouanga, and LAFC stymied the surging Seattle Sounders 4-0 at BMO Stadium, splitting the regular-season series with the team that beat the Black & Gold in last year’s MLS Cup playoffs.

Midfielder Yaw Yeboah also connected on his first goal with LAFC, punctuating the club’s most lopsided win of the year.

Ünder, starting for the first time since April 9 when LAFC was eliminated from the CONCACAF Champions Cup by Inter Miami, got rewarded in the 26th minute with his second MLS goal since arriving on a loan in late February.

Off a corner kick, Seattle cleared Denis Bouanga’s cross out of the box. The ball fell to Ünder and from 30 yards away the Turkish left-footed forward struck a curling shot through traffic that took one hop off the grass and snuck past goalkeeper Andrew Thomas, who leaned the wrong way and barely got a hand on Ünder’s attempt.

Seattle’s backup also started the Sounders’ 5-2 win over LAFC in March. Thomas was under pressure from the opening whistle as LAFC ran its streak of results to six while snapping an unbeaten string of four wins and a draw for Seattle.

Making his first start since March 15, Ebobisse provided breathing room for the second straight match in front of LAFC’s home supporters. After putting LAFC ahead 2-0 over Houston on May 3, he did the same against Seattle in the 51st minute.

Ebobisse took it into the box, cut to his right, and struck it low into a corner, capitalizing on a terrific pass from LAFC’s side of the pitch into space by midfielder Igor Jesus, who took the ball off the foot of Seattle’s Pedro de la Vega to set up the action. .

Ünder, Ebobisse and midfielder Frankie Amaya, who made his first start after joining LAFC last month, were subbed off in the 66th minute. Amaya put in a strong hour-plus in place of Mark Delgado, who entered for the last half-hour alongside Nathan Ordaz and David Martínez.

LAFC did not defend deep or step off the gas to protect what they had, unlike their 2-2 draw on Sunday in Vancouver. Instead, Bouanga’s sixth goal of the year in the 80th minute, off an assist from Martínez, and the fifth goal for Yeboah in 81 MLS matches sealed the win.

Three saves against Seattle (5-4-4, 19 points) preserved Hugo Lloris’s fifth clean sheet in 12 regular-season starts.

— Josh Gross

Galaxy remain winless

Tai Baribo scored two second-half goals, including the winner in stoppage time, and the Philadelphia Union rallied to beat the Galaxy for the first time at home with a 3-2 victory.

The Galaxy (0-9-4) continued the worst start by a defending champ in league history despite Diego Fagúndez becoming the eighth player in league history to reach 75 goals and 75 assists in a career.