There is nothing more exciting in the world of football than when a new talent, fresh-faced and full of life, laces up his boots for the first time and starts to dazzle fans. What happens after those spectacular first moments, however, is anyone's guess.
Some players will go on to fulfill those sky-high expectations imposed on them from the first days of their career, becoming legends thanks to a combination of hard work and good luck.
Many others though will never quite make the grade expected of them. It may be due to a failing on their part, or some extenuating circumstance that made it impossible to reach their potential; but when this happens, we can only look back and wonder, what if?
We have trawled through the archives of football history to bring you 10 of the top young stars who, for one reason or another, could not live up to expectations.