Barcelona: Thomas Vermaelen and worst-ever Barca signings including PSG star and ex-Arsenal heroes

Frederic Dehu
Eleven appearances after a €6 million move from Racing Club de Lens was a poor return for a France international, who returned back to Ligue 1 after only one season in Spain.

Geovanni
The playmaker was later to demonstrate his class—briefly—at Manchester City, and then again—in patches—at Hull City—but he was a flop at Barcelona.

Arriving for a considerable fee of €21 million, Geovanni struggled under the pressure and he left after two years and one goal.