Ravel Morrison. Wonderkid gangster spouse abuser and witness intimidater at Man Utd to various loans and permanent deals at lesser English clubs where he'd have striking starts before falling out of favour for various reasons - poor trainer, arguments with coaches and even refusing to sign for Big Sam's dodgy agent. He then pops up at Lazio where he flops before reinventing himself in Mexico. And he's only 25 I think? Mad career so far!
Bradley Wright Phillips has a pretty crazy and similar (ish) story too. Next big thing, to toilet seat shoplifter (I think? with Glen Johnson?), Bounces around lower leagues, moves to America and rediscovers his love of football, afterwards becoming a consummate professional and one of the MLS all time top scorers.