After lost Dani Carvajal to a knee injury and Lucas Vazquez who struggled with his fitness, Real Madrid was looking for a new right-back mid-season.
The athletics says that City made contact with Real Madrid about recording club captain Walker, 34.
However, City has not received any form of feedback, not even a courtesy 'thank you, but no thanks' from the Spanish giants.
Walker eventually went to AC Milan until the end of the season.