Keirrison
Brazilian striker Keirrison was signed as something of a wonderkid in 2009, leaving Palmeiras on a €14 million.
He left five years later, having never made a senior appearance for Barcelona.
Now, still only 26, he’s back in Brazil, playing for Coritiba…you’d be forgiven for not having heard of him!
Victor Baia
Like the late Robert Enke and Victor Valdes, Baia arrived at Barcelona with burgeoning reputations, only to struggle with the pressure and the demands of the Nou Camp.
Baia was possibly the biggest let-down of the three.
He was prone to significant lapses of concentration in Catalonia and eventually slumped back to Portugal.