Bojan Krkić
La Massia wonderkid tipped for massive things who made his Barca debut at 17. Never really kicked on and was sold to Roma at age 21 (for €12m with a compulsory buy-back clause to trigger after 2 years that Roma would need to pay another €28m to cancel).
Did little there and loaned to AC Milan for his second season. Roma were happy to send him back to Barca for a small profit, per the clause.
Loaned to Ajax, who declined the option to extend the loan.
Sold to Stoke (!) for £1.8m in 2014. Flattered to deceive and was loaned out to Mainz and Alaves before Stoke binned him off.
At aged just 28, signed a one-year deal for Montreal.
They let him go and he joined Vissel Kobe, who similarly dumped him.
Officially retired aged 32.