Has it been in a match that really matters.. like lets say the World Cup??? No...!!
And always to mid selections of Brazil, never to the top one with the stars let me remind you Brazil 4-0 Mexico. America Cup 2004
So pay attention before in what they are playing for and then you can forecast who will win.
Important match: Argentina, Brazil victory
Not important match: Mexico victory.
You may recall Confederations Cup 1999, which Mexico won to Brazil, yes, but consider.
1. Brazil didn't came with stars because they don't give much attention to the title, remember in 2002 they won the World Cup, giving importance to things that matter.
2. Was play in Azteca stadium, really home advantage.