After several seasons in Regional Divisions, the club promoted for the first time to Tercera División in 2012.
UD El Entrego was founded in 1939 from the merger of two local clubs, Arenas de Santana and Sporting del Norte.
El Entrego CD was founded in 1964 and unlike its predecessor, this club was not that successful.
Since that year they have played at the Nuevo Nalón Stadium, with a capacity for 1,200 spectators.Their biggest rivals are EI San Martín from Sotrondio.
The towns are approximately 3 km apart and share the municipality of San Martín del Rey Aurelio.