 BSK had already been a dominant club domestically during the 1930s.SK Jugoslavija, renamed by then to SK 1913 because of political reasons as German authorities intended to put an end to what has been Yugoslavia and which the club´s name was inspired in, won the title in 1942, having finished second in all other editions.At this period, Serbian clubs absorbed numerous players that arrived from other parts of the country which was being devastated by the war.