La Masia Academy Barcelona has produced some of the best players in the world.
The academy will be limited to producing certain talents that shake global football because certain rules are broken.
Especially the thick sign written behind the door of the coach room stating: "If you offer us young players less than 1.8m, turn and go home."
That would mean that players like the fringe like Andreas Iniesta, Xavi, Pedro and Lionel Messi would not make it through the academy.
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But the sign was torn down by the late Johan Cryuff who began his managerial career in 1988 when Messi was still a toddler.
"He believes that talent is the key and the height is irrelevant," said former Nou Camp coach Laureano Ruiz.
"Small players have big advantages compared to big players. They can start, stop and turn faster … the best players are all small. "
The attitude of the Dutchman made way for Messi and likes and that single action had produced great results 16 years after for the Catalans.
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"I have a large network of scouts in South America and one of them told me there when I was little in Rosario who was only 12 years old but he was unique," explains Josep Maria Minguella in Take the Ball, Pass the Ball, a new documentary about Barcelona's Gu Pepe Guardiola.
"Now the club is investing in children but that didn't happen at the time. It wasn't easy, but Charly Rexach helped and we decided to take him."
A former Barcelona manager, Rexach, who was responsible for doing more than a large part to bring Messi to Europe and to La Masia said: "I always say it's an honor to bring Messi to the club.
"My small part in coming was that I kept nagging until we signed it.
"If you go to the council at that time and tell them that we need to sign a 12-year-old child, their first reaction is, & # 39; Let's talk again in eight years, & # 39; but I said, & # 39; No, we have to sign it; he is very good and one day he will be extraordinary. & # 39;
"Even then it was clear that Messi was out of this world."
Messi and his parents flew from Argentina to Barcelona where they waited a month for an agreement to be beaten.
And the agreement was written with a napkin to convince his parents that their son would have a career at the club.
"I told Rexach that I needed something in writing because his parents were here a month and I kept convincing them, but there was no official agreement," Minguella said.
"We were at the Pompeia Tennis Club in Montjuic and there was a napkin on the table so Charly Rexach took one and wrote," I, Carles Rexach, presidential advisor, confirmed that Leo Messi has the qualities needed to sign FC Barcelona. & # 39;
"He signed it and then I signed it. We still have napkins but they are stored safely in the bank because it is complicated and needs to be treated."
Messi was linked to the scenario many years ago and admitted the club gambled to sign him into the academy.
"Nobody wants to risk with me," Ballon winner 'Or five times said now. "It was a big gamble to sign a small child from abroad and take him to Barcelona.
"It was Charly Rexach that made it happen; he came to watch me play and told me that Barca wanted me. It was thanks to him and the coaches who wanted to sign me, even though there were some who didn't!
"At first it was difficult, I was very young and everything was new. I left my family, friends and country. It was difficult to start but I managed to finish it."
At that time, Xavi had made his debut for the first La Blaugrana team and years later he became a leader in the team before Messi found his way to the first XI and the rest became history.
"One of my friends worked at the youth academy when Messi was 14 or 15 years old," he remembered. "I always ask about children, which is good, who is special, and who will reach the first team.
"I remember he told me that there was this child from Argentina and that he had never seen anyone with his talent.
"When Messi started training with us at the age of 16, we all realized he was special."
In 2005, when Argentina was only 18 years old, all of Europe realized what only a handful of people knew.
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Fabio Capello has asked for a loan move for teenagers after Barcelona played a pre-season match with Juventus in the Gamba Cup.
But Frank Rijkaard refused and chose to care for him and his successor Pep Guardiola for the next few years which helped Messi reach its peak.
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