The Battle for Southern California sets the stage for the LA Galaxy match against Mexico's Club Tijuana -- one that will feature Landon Donovan and Omar Gonzalez versus fellow U.S. International Herculez Gomez -- in the decisive second leg of their CONCACAF Champions League Quarterfinal series. See how the two clubs vie for players and fans throughout Southern California and the importance of this rare encounter.MLS Insider Presented by Adidas dives into the story lines behind Major League Soccer. Your favorite players. Your favorite teams. Unprecedented access.