The 19-year-old defender is a key part of their future under Pep Guardiola. He has played 11 times this season.
And theDaily Mailreports that City want him to sign a new deal so that interest from other clubs does not become a problem.
Barcelona want to re-sign him, as the player left the Catalan giants three years ago.
The centre-back will likely get a significantly higher wage, but it is talks with Guardiola about his chances of playing next season that may hold the key to him renewing with City.
His current deal has two years to run.