Some details!
"Teams have a friendship level from 1-10. With Red Bull Salzburg and Leipzig having a 10 and Atletico Madrid and Real Madrid a -2. The higher the level, the more likely to do deals with each other. This way, things like Figo will be very rare."
"Rivals are not only local rivals but can also be teams that play, for example, for the same title and are direct competitors"
- Andreas Wildsdorf, FC 27 Producer