Career
Domínguez spent the following two seasons on loan, with South Dakota Eibar (Segunda División) and Real Unión (third level), both in the Basque Country. In the 2007 summer his contract expired and the free agent signed with UE Lleida in division three, only managing to score twice during the campaign. Domínguez returned to Real Unión for 2008-2009, helping the Irun club return to the second tier after 44 years but being immediately relegated back.
On 30 June 2010 he signed with another side in the category, Gimnàstic de Tarragona.
However, he failed to impress during his tenure, and in January was loaned to former team Eibar until the end of the season. In late January 2012, Domínguez was released by Nàstic.
On 4 February, he signed a contract with third division"s Civil Defense Guijuelo.
