In 2009, Liberia Mía won the Verano championship title,[4] but it proved to be a short-lived party when in July 2010, the club just renamed again to Águilas Guanacastecas (Guanacastecan Eagles),[5] were demoted to the Segunda División de Costa Rica after trading franchise rights with Barrio México.

In February 2015, Uruguayan coach Orlando de León took charge, replacing Slovak Josef Miso after some poor performances.

As a curious fact, at that time they asked AD Guanacasteca to inaugurate it in a Costa Rican First Division game, given that the game they had to play on that date was a visitor against Limón FC and the Caribbeans were asked to agree play in the White City; this is how that day, Limón FC was local in Liberia against Guanacasteca.

The stadium was subjected to intense improvement work, both in its infrastructure and in its natural grass, starting in 2013, because it is a venue for the Women's World Cup of Sub-Soccer.

List of players and coaching staff who achieved the 2009 summer championship of the National Soccer Costa Rican First Division under the name of Liberia Mia on May 26, 2009.