Atletico Madrid's Argentina striker Sergio Aguero [ Images ] has been granted dual Spanish nationality, the La Liga [ Images ] side said on their website (www.clubatleticodemadrid.com) on Friday.

The move frees up one of the club's three berths for non-European Union players as allowed under Spanish football federation rules.

The other two are taken by Uruguay defender Diego Godin and Brazilian striker Diego Costa.

The 22-year-old Aguero, nicknamed 'Kun', was signed from Independiente for 23 million euros in 2006 and is in the process of negotiating an improved contract with the club.

He has developed a flourishing partnership with Uruguay's Diego Forlan [ Images ] up front and has scored five league goals so far this season.