A German trade union on Friday threatened to blockade a World Cup stadium unless they manage to end a tariff conflict before the start of the World Cup finals. An official for the Unified Service Sector Union (ver.di), Peter Schmitt, said that they do not want to blockade the entrance to the Kaiserslautern World Cup stadium. "We don't want that. We would much rather enjoy good games there, but if the tariff conflict is not ended by the start of the World Cup we cant rule out blocking the stadium entrance with thousand of striking workers." The conflict between ver.di and the employers organisation have stalled and there is no new date yet. One of the reasons for the conflict is a planned increase in working hours.