Barcelona's La Masia academy has a world-renowned reputation, and with good reason. Year on year, the coaches of the Barca youth system seem to unearth gems with incredible regularity.
That has much to do with certain philosophies that Johan Cruyff insisted upon when he became manager of the club in the late 1980's.
For it was Cruyff who introduced a system whereby even the youngest boys at La Masia would play in the same way as the first team. No matter the individual strengths and weaknesses, every team would play the same way.
It has paid dividends in the best way possible.
Andy Mitten noted former La Masia graduate Pep Guardiola's words for The National:
Other youth academies in Spain are also doing a very good job but the difference is that we give our youth players a chance. But there are other key differences.
We teach the young kids that winning is not everything. First, they have to play fair, then play offensive, then they have to win. Winning is important but not before the first two are accomplished.
Players have to think quickly and to play with intelligence, always knowing the next pass. It is how we have all been taught and how the public expects us to play.
Xavi Hernandez, Carles Puyol, Andres Iniesta and Lionel Messi. What would they be worth collectively in today's market? £400 million?
Thanks to the studious tutelage at La Masia, not a single penny in transfer fees was needed to change hands.
Let's take a look at a few more players that are on the verge of big things at Barca.