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perhaps this is why many of the top contenders refuse to fight there.

Interesting, I wasn't aware of that.

Well it's not as cut and dry as them publicly refusing to fight there but I don't think it is a coincidence that most of the time when there is a big event in Brazil that opponents appear to be specifically targeted to favor the Brazilians. Mostly, I think that if non Brazilians are approached to fight in a PPV in Brazil, that they should be worried because there is probably a very good reason why they were chosen. They are chosen to lose.