In the 2014 World Cup final against Argentina, the German midfielder Christoph Kramer collided with Ezequiel Garay and blacked out. He asked the referee: Schiri, ist das das Finale? Ref, is this the final? He stayed on the pitch for about fifteen more minutes with a concussion and was taken off after 30 minutes. He still cannot remember it. In June 2019 the German football association’s medical commission told the clubs that every professional in the first and second Bundesliga must have a neurological baseline screening at the yearly fitness examination. In March 2023 the clubs signed the first common DFL-Protokoll Kopfverletzungen, a protocol for head injuries. Head coaches, sporting directors and team doctors each signed it. It obliges club medical staff to attend emergency training every year. An appendix sets out the return of a player to training and matches after a concussion. The doctor who led the working group, Tim Meyer, said: Kopfverletzungen sind keine Bagatellen. Head injuries are not trifles.