Best known for his Sevilla and Real Madrid spells, he appeared in 542 La Liga matches, third all-time highest at the time of his retirement, winning 12 major titles with the latter club.

At the age of 14, he began playing football for local Ural, for which he appeared as both a goalkeeper and right winger during his one-year spell, achieving the feat of being both unbeaten between the goalposts and also the team's top scorer.

[1] He made his debut in La Liga in the 1980–81 season with Sevilla, being the starting goalkeeper from the beginning; he appeared in 248 competitive matches during his spell, also earning his first callup to the Spain national team.

[3] In his first season, he played all 44 league games (the campaign featured a second stage), the first being a 3–1 away win over Real Murcia,[4] being instrumental to the Merengues' national title.

[5] The local success Buyo met with Madrid (six leagues and two Copa del Rey) could not be translated into international accolades, as they kept being eliminated in European Cup competition.