Blackburn Rovers signed Ruben Rochina from Barcelona's B side for an undisclosed fee on Monday.
The 19-year-old has signed a contract that will keep him at Elland Road until 2015.
'Ruben is a genuine addition to our senior squad, a young player with great ability who can play in a number of attacking positions,' said manager Steve Kean.
Rochina has scored twice in 13 appearances this season for Barcelona's B team.
'He joins our elite development group alongside the likes of Phil Jones and Junior Hoilett and will compete for a place in the team from the word go,' Kean added.
'The fact we are able to sign young players from the likes of Barcelona is further evidence of the owners' intention to push the club forward.
'They told me they were keen to add to our youth development group and this is a significant and exciting signing for us.'