Question about playing from another country

I currently play BB on XBOX1, but I have a good computer, and since I have some great friends from other games, I am considering to buy the PC version.
However, some of these friends are from Brazil. I noticed that the Brazilian version alone, after making the conversions, was cheaper for him than buying the NA version.
So if he buys this one from Brazil, will he be able to play with me, or is it region restricted?
thank you.