City have clinched the signing of former Barca junior Pablo Moreno from Juventus in a €10m deal.
Barca scout Javier Mahia told Marca: "At Barça he is breaking all records that were created by Bojan (Krkic)."
Barca U14 coach Carlos Martinez also remarked: "He is very good, he is the most competitive player I have coached.
"He has a bright future, but he has to go step by step."
Moving in the opposite direction from City is Portuguese youngster Felix Correira.