The Red Bull Arena, during UEFA Euro 2008 known as EM-Stadion Wals-Siezenheim, is a stadium used mostly for football matches in Wals-Siezenheim in the state of Salzburg. It opened in 2003 and it has a capacity of 31,000. FC Red Bull Salzburg are the only tenants of the stadium. They are also known as Die Bullen and they are one of the major sports clubs in the country.