Sunderland are interested in Manchester City youngster Callum Doyle.
The 17-year-old stopper was a regular for both City's under-23 and under-18 side's last season.
The Black Cats have put forward an offer to take Doyle on a two-year loan deal, per The Roker Report.
City recently agreed a similar loan for Filip Stevanovic, who joined Dutch side Heerenveen.
