Andre Santos: I learned so much at Arsenal
He said: "It was [in England] that I learnt I was a full-back, whose first priority is to defend properly and to get forward only when it's necessary."
Santos (above) also believes he lost his place in the Brazil team because to a lack of focus.
He added: "I made mistakes, which were more to do with me getting distracted than anything else. You have to maintain maximum focus because there are thousands of players who want your place."