 This tradition of the rival matches between FK BASK (former SOKO) and FK Šumadija is held, since 1993, every year on St. George's Day, on May 6, and on Krstovdan, on September 14, when they celebrate their respective holiday Slava´s.It would be in 1911 and 1912 that Soko would gain the reputation of the strongest club in Serbia and included players such as Čedomir Nedić, Đoka Ilić, Mata Miodragović, Žika Popović, Jovan Viktorović, Elezović, Paja Vukićević and others, which formed the core of the group of the pioneer Serbian football stars.With the beginning of the First World War most of the footballers replaced the ball with a rifle.