LOS ANGELES — The Seattle Sounders stunned Lionel Messi and Inter Miami 3-0 yesterday to win the Leagues Cup, completing their collection of North American trophies in front of a record crowd at Lumen Field.

Osaze De Rosario scored in the 26th minute and Alex Roldan added a penalty in the second half before Paul Rothrock capped the scoring for the hosts, whose determined defense stymied a star-studded Inter lineup led by Messi.

Inter’s frustrations spilled over at the final whistle and officials had to scramble to quell a brawl before Seattle could celebrate their first Leagues Cup title.

The Sounders — whose US$16.7 million (RM70.6 million) payroll is dwarfed by Miami’s US$46.8 million player compensation total — became the first Major League Soccer team to win every North American trophy on offer.

They already own two MLS Cup crowns, an MLS Supporters Shield, four US Open Cups and a Concacaf Champions Cup.

This one was especially sweet with eight-time Ballon d’Or winner Messi on the other side.

“It’s a lot,” Sounders coach Brian Schmetzer said. “Because look, it’s against one of the best teams in our league, in the world, with Messi the best player in the world.”

De Rosario — son of former MLS Most Valuable Player Dwayne De Rosario — put the Sounders in front, heading in a cross from Roldan.

De Rosario had electrified the largely green-clad crowd when he came close in the third minute with a header saved by Miami goalkeeper Oscar Ustari.

“What’s going through my mind right now? It’s crazy, it’s a dream come true, I beat Messi in a final!” De Rosario said.