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Chek May 14, Boca - River (argentinian most known clasic), it's a final for an international title. I would say it's a rivalry way over Barça - Real Madrid (I'm Real Madrid fan for european teams, but I loved when Boca beat'em on world cup 2000)
Anyhow Boca is the father of River, they are like our dumb child :p

Thx, I’ll try to keep may 14th in mind.