I have been wondering about this for some time and especially after I started a Hertha BSC save but is it possible for rivalries to form?
Let's say I take Hertha to the top of German football alongside Bayern and Dortmund and there are no relations between me and those clubs. It would be weird if there would no rivalry form if I was competing with them for league titles year after year. Currently my only rivalries are with Schalke and Union Berlin and none of those derbies are fierce rivals.
If not I have thought of just adding new teams as rivals through the In-game editor.
Let's say I take Hertha to the top of German football alongside Bayern and Dortmund and there are no relations between me and those clubs. It would be weird if there would no rivalry form if I was competing with them for league titles year after year. Currently my only rivalries are with Schalke and Union Berlin and none of those derbies are fierce rivals.
If not I have thought of just adding new teams as rivals through the In-game editor.