The Grotenburg-Stadion is a multi-use stadium in Krefeld, Germany. It is used mostly for football matches and hosts the home matches for former DFB-Pokal winner KFC Uerdingen 05. The stadium has a capacity of 34,500 and was built in 1927. The 1970s brought significant renovations, including new seating and a floodlight system. In the 1980s, further expansions and modernizations took place, transforming it into a modern stadium. Wikipedia