FIFA has confirmed that it is carrying out an investigation into Manchester City's recruitment of youth players.
However, City have said they have no knowledge of the investigation and world football's governing body has not asked them to provide any information.
FIFA did not confirm details of the matters being looked at, with a spokesperson telling ESPN FC: "We can confirm that an investigation is ongoing."
A City source questioned whether the investigation was linked to an ongoing inquiry into the club's recruitment of Benjamin Garre.
City signed Garre, then 16, from Velez Sarsfield in September 2016, but the Argentine club claimed the move breached FIFA rules on the signing of players under 18 from outside the European Union.