After playing for two clubs in his native Asturias, he joined the professionals in 1955, going on to spend two seasons in Segunda División with Real Oviedo also in his region of birth.
[1] Cuervo returned to Oviedo shortly after a health problem halted his progression, but Alvarito stayed with Atlético, helping them to back-to-back Copa del Rey conquests, both won at the Santiago Bernabéu Stadium against Real Madrid.
He never appeared in more than nine league games for the club during his six-year spell as no substitutions were allowed at that time, and often played understudy to Isacio Calleja; he also suffered a tibia and fibula injury, in a match against Real Valladolid.
[1] Alvarito's last season in his country's top division would be 1963–64, playing the most he had in years to help Real Murcia finish in 12th position and scoring his first and only goal in the competition on 16 February 1964, in a 1–0 home win over former team Oviedo.
[2] Subsequently, he plied his trade in the Republic of Ireland, Canada and the United States – very briefly returning to Spain to appear for Córdoba CF – acting as player-coach for Shelbourne.