Betis Deportivo Balompié enter the Copa del Rey. Additionally, only under-23 players or under-25 players with a professional contract can switch between senior and reserve teams. Founded in 1963 as "Triana Balompié" and named after a working class district in Seville. Legend has it that Betis, later to evolve into Real Betis, was formed in 1913 by a group of Sevilla FC directors after the club refused to sign a player who came from Triana. In 1976, the team was renamed as "Betis Deportivo" and started to compile an impressive record in the Spanish U-19 Cup, winning the competition in 1983, 1990, 1998
Real Betis 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 in order to qualify for UEFA Euro 1984. In 1992, Betis found itself subject to new league rules and regulations due to is restructuring as