 Complete the following phrase:  In 1953, the main stand was refurbished and extended, creating space for a press room and meeting spaces. Also, a memorial was revealed, commemorating the war victims. In 1958, the running track was removed, making space for a bigger field. New stands are built as well, increasing the capacity to 22,000. Four 40-meter high floodlights were installed by Philips in the stadium in the same year, making evening matches possible. The lights were inaugurated on April 9 with an exhibition match against RSC Anderlecht. A complete renovation of the stadium started in 1969. After its completion in 1977, the stadium was completely enclosed and every seat was covered. The main south stand peaked above the other stands. The capacity rose to 26,500, of which 12,000 were for standing spectators. The renovated ground was celebrated with a match against Leeds United. Earlier, the ground was used by the Netherlands national football team for the first time. On November 17, 1971, the Netherlands played a qualifying match for the 