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Gus Ruelas, Associated Press
Chivas USA defender Zarek Valentin, right, looks on as Los Angeles Galaxy midfielder Chris Birchall (8), of England, reacts after a missed goal during first half of an MLS soccer match, Sunday, Oct. 16, 2011, in Carson, Calif.

CARSON, Calif. — Chad Barrett scored in the 53rd minute, Josh Saunders earned his eighth shutout, and the Los Angeles Galaxy wrapped up the third unbeaten home season in MLS history with a 1-0 victory over Chivas USA on Sunday night.

Los Angeles (19-4-10) already clinched the Supporters' Shield and the top playoff seed with MLS' best regular-season record, and the Galaxy secured the SuperClasico trophy in its rivalry series with a 2-0 aggregate victory over Chivas.

The Galaxy went 12-0-5 this season at Home Depot Center, the site of next month's MLS Cup.

Los Angeles played without superstars Landon Donovan and Robbie Keane. Donovan is resting a strained quadriceps that kept him out of two recent U.S. national team games, while Keane is resting a torn thigh muscle.