text: Di Stéfano transfer The rivalry was intensified during the 1950s when the clubs disputed the signing of Argentine forward Alfredo Di Stéfano. Di Stéfano had impressed both Barcelona and Real Madrid while playing for Los Millionarios in Bogotá, Colombia, during a players' strike in his native Argentina. Soon after Millonarios' return to Colombia, Barcelona directors visited Buenos Aires and agreed with River Plate, the last FIFA-affiliated team to have held Di Stéfano's rights, for his transfer in 1954 for the equivalent of 150 million Italian lira ($200,000 according to other sources). This started a battle between the two Spanish rivals for his rights. FIFA appointed Armando Muñoz Calero, former president of the Spanish Football Federation as mediator. Calero decided to let Di Stéfano play the 1953–54 and 1955–56 seasons in Madrid, and the 1954–55 and 1956–57 seasons in Barcelona. The agreement was approved by the Football Association and their respective clubs. Although the Catalans agreed, the decision created various discontent among the Blaugrana members and the president was forced to resign in September 1953. Barcelona sold Madrid their half-share, and Di Stéfano moved to Los Blancos, signing a four-year contract. Real paid 5.5 million Spanish pesetas for the transfer, plus a 1.3 million bonus for the purchase, an annual fee to be paid to the Millonarios, and a 16,000 salary for Di Stéfano with a bonus double that of his teammates, for a total of 40% of the annual revenue of the Madrid club.
  Di Stéfano became integral in the subsequent success achieved by Real Madrid, scoring twice in his first game against Barcelona. With him, Madrid won the first five editions of the European Cup. The 1960s saw the rivalry reach the European stage when Real Madrid and Barcelona met twice in the European Cup, with Madrid triumphing en route to their fifth consecutive title in 1959–60 and Barcelona prevailing en route to losing the final in 1960–61.