The next decade, Medellín signed Peruvian Segundo Castillo Varela, who won the 1939 South American Championship, the first title of his country, in a movement of what was known as El Dorado, when Colombian teams signed many foreign footballers. Medellín did not play in 1952 and 1953 due to economic problems. The team won its first title in the 1955 Campeonato Profesional. The team finished first with 31 points and just one defeat. Argentine Felipe Marino was the top goalscorer of the team and the tournament, with 22 goals. The team won its second title two years later, in 1957, with almost the same players as the previous seasons. José Vicente Grecco was the top scorer of the tournament.