Concurrently with that action, he applied for an interlocutory decision ordering RCL and the Union Royale Belge des Sociétés de Football Association (Belgian Royal Union of Football Clubs - URBSFA) to pay him a monthly advance until he found a new employer, restraining the defendants from impeding his engagement and referring a question to the European Court of Justice (ECJ) for a preliminary ruling.
Le 8 août 1990, Bosman assigne le RCL devant le Tribunal de première instance de Liège.