Guido Carrillo
Carrillo has perhaps been unlucky to not have more of a chance at Saints but he clearly never fit in at the club.
Signing the Argentine never really made sense and only seemed to be a transfer to suit former manager Mauricio Pellegrino.
The striker is currently spending his second loan spell at Spanish side Leganes and looking to strike up some interest in himself for the summer.
After joining for £19m, Carrillo goes down as one of Saints’ worst buys of recent times.