The US president also offered his support to the country's national side ahead of its World Cup qualifying match against rival Mexico on Tuesday, but noted the absence of some of the Galaxy's players including Omar Gonzalez and Robbie Keane.
"There are a couple of Galaxy players who couldn't be here because of World Cup qualifying, so I'll wish Team USA the very best of luck as they take on Mexico tonight," Obama said.
Landon Donovan was present for the Galaxy, and presented Obama with a ball and a personalised jersey, though the player was not made available to speak to media.
Donovan is expected to make his first comments since rejoining the team on Thursday, and even though he had not been with the Galaxy since the 2012 MLS Cup final prior to this week, he still was the center of Obama's complimentary remarks about the club's championship run.
"When it comes to to the Galaxy, a team with Landon Donovan on it is rarely the underdog, but when the Galaxy was here last year, their chances of repeating as champion weren't all that good," Obama said.
"The injury bug plagued the team, it seemed like it might be a rebuilding year, but right after that visit they turned things around."
The Galaxy made the playoffs last season and went on to defeat the Vancouver Whitecaps, San Jose Earthquakes, Seattle Sounders and Houston Dynamo en-route to capturing the fourth MLS Cup in the club's history.