CARSON, Calif. -- Kellyn Acosta scored in the 69th minute, and FC Dallas opened the MLS season with a 2-1 victory over the LA Galaxy.

Twelve minutes after the Galaxy's Giovani dos Santos scored on a penalty kick to make it 1-1, Acosta sped across the 18-yard box, split two defenders and shot to the bottom corner of the near post. The Plano native scored two goals all last season.

Maxi Urruti scored the opening goal in the 47th minute. Urruti split two defenders and fired his shot from outside the box and into the net.

FCD, which won the Supporters' Shield last season for best regular-season record in MLS, spoiled the debut of Galaxy coach Curt Onalfo, who replaced Bruce Arena.

Dallas squandered an opportunity in the 33rd minute. The Galaxy's Dave Romney deflected a header, and the ball went right to FCD's Michael Barrios, who shot past goalkeeper Brian Rowe. But defender Jelle Van Damme cleared Barrios' point-blank shot from the goal line.

The Galaxy opened the season without last season's leading scorer, Robbie Keane, as well as Landon Donovan and Mike Magee.