Second-half substitute Marco Pappa scored in the 85th minute and again in stoppage time, and the Seattle Sounders beat the Los Angeles Galaxy 2-0 to win the MLS Supporters' Shield for the first time in the six-year history of the club.
The Sounders (20-10-4, 64 points) and Galaxy (17-7-10, 61 points) started the day in a tie atop the overall standings. Seattle had more wins, so it only needed a tie to claim the Shield, while Los Angeles needed a victory to take the honor for the fifth time.
Pappa entered in the 73rd minute.
On a quick free kick 35 yards from the goal, Obafemi Martins sent a ball into the penalty area. Pappa ran in from the left side, beat Galaxy goalkeeper Jaime Penedo to the kick and drilled it into the back right corner for the score.
Sounders goalkeeper Stefan Frei preserved the lead early in stoppage time by saving Dan Gargan's point-blank blast from 10 yards. Pappa then clinched the win by stealing the ball from Penedo outside the top of the box, taking it in and tapping it into the wide-open net, giving him six goals for the season.
First-round playoff opponents for either side have yet to be determined.