AFAS Stadion, formerly called DSB Stadion is a stadium in Alkmaar, Netherlands. It is used for football matches and is the home stadium of AZ. The stadium is able to hold 17,023 people and it officially opened on August 4, 2006 with a friendly against Arsenal. AZ lost the match 3–0, with Gilberto Silva scoring the stadium's first ever goal. The first Eredivisie game against NAC Breda was won 8–1 by the home team with the German midfielder Simon Cziommer scoring a hat-trick.