In 2004, the Zürich venue became a problem for the organisers. Originally, the Hardturm stadium was to be renovated and used as the city's venue, but legal challenges delayed the plan to a point that would not have allowed the ground to be used in 2008. This created a problem, as the agreement between UEFA and the organizers stipulated that four venues would be used in each country. The problem was solved when the organizers proposed renovating Letzigrund instead; UEFA approved the revised plan in January 2005. The Letzigrund stadium hosted its first football match on 23 September 2007.[5]