He spent ten of his 11 years as a professional with Zaragoza, appearing in 279 competitive games (61 goals) and winning three major titles with the club.

Lapetra was born in Zaragoza, Aragon, as his parents had relocated to the city from Huesca due to the Spanish Civil War.

[2] During his one-decade spell at the La Romareda, Lapetra was part of an attacking unit that also featured Canário, Marcelino, Eleuterio Santos and Juan Manuel Villa, dubbed Los Magníficos (The Magnificent).

[3] He helped the club to four Copa del Rey finals in the 1960s, winning twice and scoring in both matches, against Atlético Madrid in 1964[4] and Athletic Bilbao in 1966.

[5] Lapetra retired from football at only 30, due to recurrent injury problems and as Zaragoza did not renew his contract.