Release Clause: £28.5m Carlos Vela. Football Manager wonderkid of yesteryear. The Mexican forward was always a tremendous Arsenal youth product, now he's found his feet in La Liga. You may baulk at the £28.5m figure on the basis that you only paid a fraction of that a few years ago for his services, but he's an outstanding talent, brimming with technical quality, sharp pace and natural goalscoring ability.