Pep Guardiola's side have seen off competition from the Spanish champions to clinch the signing of Benjamin Garre, the 15-year-old grandson of a 1986 World Cup winner.
Manchester City has seen off competition from Barcelona to sign Benjamin Garre from Velez Sarsfield, Goal understands.
Pep Guardiola's new club have secured the 15-year-old's signature despite interest from the Spanish champions, with Garre considered one of the best players of his generation in Argentina.
The attacking midfielder is the grandson of Oscar Garre, a former defender who was part of Argentina's 1986 World Cup-winning squad, and it is understood that City will pay only minimal compensation as he was not under contract.