Real Madrid defender Dani Carvajal rates their youth system ahead of Barcelona's.
Carvajal came through the academy at Real before moving to Bayer Leverkusen last season.
Now back at home, he told Sportium: "I had to leave, but I always hoped to come back.
"Real's youth system is the best in the world. They teach you the fundamental values to develop as a person and a professional from a very young age."
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