The Agia Sophia Stadium, also known as OPAP Arena for sponsorship reasons and as AEK Arena for UEFA competitions, is the home stadium of AEK Athens. With an all-seater capacity of 32,500 it is the third largest football stadium overall in Greece. It is located in Nea Filadelfeia, a northwestern suburb of Athens, Greece. The new arena was built on the site of the former Nikos Goumas Stadium. Wikipedia