Fixes games are only happening in smaller leagues, because they can afford it due lack of regulation. Any of the serious leagues like FIFA have very strict regulations and I doubt anyone would be getting away with buying any of these players which are making millions. When you are making millions already you don't need to take these risks, but in the smaller leagues players go from bill to bill and sometimes they are pretty much forced to do it to make some extra money. In any case cheating is always sad, stick to real betting.