Football in Brazil has history, legacy, and mind share. I can name several professional teams from Brazil - Flamenco, Corinthians, Santos, etc. I also know of River Plate, Rosario and Boca Juniors from Argentina. This points to the fact that Brazilian and Argentine teams are older than the Mexican teams.

I cannot name a single Mexican team, and that is partly because the oldest club dates back to the 1940s. The oldest Brazilian and Argentina clubs date back to the 1900s.