Protests in Bundesliga stadiums: Accept it, it's now part of the game. Tennis balls, chocolate coins and remote-controlled cars have been flying onto the pitch in German stadiums for weeks.

Which is increasingly criticized by players and coaches alike. But football is in the midst of a serious culture war. It's about defending the so-called 50+1 rule, which stipulates that football clubs remain masters of their own house and cannot be overruled by investors or shareholders. A culture war has broken out in the Bundesliga. This battle will not be decided by discussing who owns football.