Mike Magee and Robbie Keane did all the damage as the Galaxy ran out comfortable winners.
"I like the attitude of our players and hopefully we can try to keep a couple of them fresh as we move forward," Galaxy boss Bruce Arena said after the match.
Magee’s 40th minute goal was the difference in a chippy first half that featured 19 fouls. David Beckham found Keane streaking into the box. Keane quickly crossed to Magee, who beat Vancouver defender Alain Rochat to the ball for an easy tap-in past Joe Cannon.
Keane broke the game open in the 64th courtesy of a Bryan Jordan cross. Keane lost Vancouver defender Jordan Harvey in the penalty box with some clever movement to head past Cannon easily.
"I think he’s getting himself back fit," Arena said of Keane. "I think we’re learning more about him as a player, he’s learning more about us. We haven’t had a whole lot of training together. I think you recognize the fact he’s a pretty good fit. He’s done real well and hopefully it will continue."
Jordan played provider again in the 75th when he found Magee from 12 yards out. Magee headed Jordan’s cross into the bottom left corner of Cannon’s goal to complete the scoreline.
With the victory, the Galaxy shook off a disappointing loss Tuesday in Mexico in CONCACAF Champions League play to extend their lead atop of the league standings. The expansion Whitecaps displayed stretches of promising play, with Swiss league imports Eric Hassli and Davide Chiumiento combining especially well at times with wingers Camilo and Shea Salinas. However, poor defending sent the team home with no points.
Vancouver was denied a penalty shout in the 35th minute when Camilo beat Jordan in the Galaxy penalty area. Camilo went down after contact, but referee Michael Kennedy waved play on, leaving the visiting side with few other chances.