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And they could be joined by other clubs eyeing Barker, who may be allowed to make a temporary move following City's £54m signing of Kevin De Bruyne.

Barker, 18, is an England Under-19 international, who recently signed a new five-year contract at the Etihad.

He went on the club's pre-season tour and is regarded as one of City's best prospects.

Leeds boss Uwe Rosler, in the market for a winger, has already tried once recently to snap up Barker, but the deal collapsed when the Elland Road club asked for a guaranteed option to make the move permanent.

(Image: GETTY)

City wouldn't entertain that suggestion.

Celtic, meanwhile, hope to strike another deal with the Premier League leaders.

They signed central defender Dedryck Boyata from City this summer and recently had John Guidetti and Jason Denayer on loan from the Etihad.

Now, they hope to add Barker to that list.

Meanwhile, Sunderland winger Will Buckley, 25, is also a Leeds target, but there is an issue over wages.