It appears that the club are not too sure where they have signed Diego from. This is from their article posted on the club website:
Diego Gomez joins Albion on 1 January from Aston Villa.
Fabian Hurzeler expects new signing Diego Gomez to hit the ground running when he officially joins the club on 1 January.
The Paraguay international is signing from MLS club Inter Milan and Hurzeler believes he has the attributes to succeed in English football.
So did we sign him from Villa or Inter Milan?
I think you've signed him from Inter Villa. Or possibly Aston Milan, not sure.
Also don't know if he has actually signed for the Albion or maybe for NK Jadran Galeb.