The young defender will join the English club next summer.
Coritiba defender Jan Couto will become a Manchester City player at the end of the season, the official website of the English club.
Young fullback will sign a five-year contract with the " The transfer amount amounted to 6 million euros, and the Brazilian club can receive another 6 million as bonuses.
Barcelona was also interested in signing the 17-year-old player, but Man City offered twice as much for him.
Couto has 13 matches for the Brazilian U-17 team, with which he won the world championship last year..
Earlier it was reported that Man City also aimed at the young defender of Borussia D Collins.
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