I wouldn''t call it "in-depth knowledge" but he''s a product of the Barcelona youth acadamy, he''s played for the Barca B side and the senior side, he''s capped for the Spain U-21 side (the side that won the most recent U-21 Euro Champs). Aside from that he''s got lots of potential and can play at CB or LB which is where we could do with some cover and whats more he was available for free.