 Complete the following phrase:  Slottsskogsvallen , The Castle Forest Field is a multi-use stadium in Gothenburg, Sweden. It is currently used mostly for football and athletics. It was the home ground of a hrefKopparbergsGC3B6teborg20FCKopparbergsGöteborg FCa till 2006. The stadium holds 8,480 people and was built in 1923. It is counted as one of the most beautiful arenas in Sweden. It hosted the 