Estadio Municipal Nicolás Chahuán Nazar - Unión La Calera

Unión La Calera is a Chilean football club based in La Calera and competes the Primera División de Chile.

It was founded as Club de Deportes La Calera on 26 January 1954, after the merger of three teams from the city: Condor, Calera Comercio and Tifón. The following year, Deportes La Calera joined Club de Deportes Melón (originated by the merger between Cemento Melón and Minas Navío) to form Unión La Calera.

After spending six seasons in second level, the club obtained its first promotion to Primera División de Chile in 1961, category where they remained until 1974. In 1985, they returned to top-tier, but they were relegated the incoming season. From there, they wandered through second level and third level, until returning to the top category in 2011, and in 2018, after a brief stint in the promotion division (Primera B). In its palmares, Unión La Calera counts with three second division titles (the 1961 and 1984 Segunda División de Chile titles; and a 2017 Primera B title) and two Tercera División de Chile honors (1990 and 2000).