In 1955, Manuel Ruiz Rodríguez stepped down from running the club believing he could not offer further economic growth, he was replaced by Betis most famous former president, Benito Villamarín. During his reign Betis returned to the top division in 1958–59 and finished in third place in 1964. His purchase of the Estadio Heliópolis in 1961 is seen as a key point in the history of the club – the grounds were called the Estadio Benito Villamarín until 1997. In 1965, Villamarín stepped down from his position after ten years at the helm of the club. Just one year after Villamarín's departure, the club would again be relegated to division two, then rising and falling almost consecutively until consolidating their place in the top level in 1974–75. First Copa del Rey Title and European Qualification On 25 June 1977, Betis played Athletic Bilbao at the Vicente Calderón Stadium in the Copa del Rey final. The match finished 2–2, with Betis winning 8–7 after a staggering 21 penalties taken. This rounded off a solid season in which the club finished fifth in the league. After that triumph, Betis competed in the European Cup Winners' Cup: after knocking out Milan 3–2 on aggregate in the first round, the side reached the quarter-finals, where they lost to Dynamo Moscow. Despite their strong performance in Europe, the team suffered league relegation. The following year, Betis returned to the top flight and ushered in a period of "good times" for the club, with the next three seasons seeing three top-six finishes, as well as UEFA Cup qualification in 1982 and 1984. During the summer of 1982, the Benito Villamarín hosted two matches as part of the 1982 FIFA World Cup, and also witnessed the Spain national team's famous 12–1 hammering of Malta to qualify for UEFA Euro 1984. Economic crisis and Manuel Ruiz de Lopera In 1992, Betis found itself subject to new league rules and regulations due to its restructuring as an autonomous sporting group (SAD), requiring the club to come up with 1,200 million pesetas, roughly double that of all the first and second division teams, despite being in level two at the time. In just three months, the fans raised 400 million pesetas with then vice-president Manuel Ruiz de Lopera stepping in to provide an economic guarantee while himself becoming majority shareholder as the team narrowly avoided relegation. On 11 September 1994,