LAFC secured the Supporters' Shield for the second time in four years with Sunday's 2-1 win at Portland Timbers after Denis Bouanga's 95th-minute winner.

The Californian club capitalized on Philadelphia Union's 4-0 loss to Charlotte on Saturday, with Sunday's win moving them three points clear with one game to play. The MLS uses most wins as the first tiebreak if points are equal, with LAFC (21) ahead of Union (18).

Bouanga's maiden goal for LAFC came deep into second-half stoppage time and was the moment that clinched silverware, with the Gabon international jinking into the box before firing home a low shot.

Carlos Vela had a goalbound shot cleared off the line by Claudio Bravo in the 33rd minute, but the Mexican would not be denied with a curling left-foot strike from the edge of the box in the 51st minute.

Dairon Asprilla equalized with a powerful header from Bravo's 81st-minute cross, but Bouanga had the decisive intervention to clinch the Supporters' Shield for the visitors.

LAFC head coach Steve Cherundolo said: "These type of emotional endings in games seem to be a habit in this league, not quite sure why. We're ecstatic. We had a goal this year and we've achieved the first one."

Portland's loss meant Nashville clinched a playoffs spot for the third straight year despite losing 2-1 at home to lowly Houston Dynamo, for whom Sebastian Ferreira scored a double.

Seattle Sounders lost 1-0 at Sporting KC, confirming they will miss the playoffs for the first time in their 13-year history, marking the end of an era.

Reigning MLS Cup winners New York City made it back-to-back wins with a 2-1 home victory over Orlando City, who are hanging on for a playoffs spot.