And he is now waiting to see if he will make the move to Pittodrie.
The Scotland cap has options on both sides of the Border. Premiership rivals Hibs and St Mirren have also inquired but Celtic won’t sanction those moves, although they are prepared to let the 22-year-old move to Pittodrie on loan.
Brendan Rodgers previously let Ryan Christie head north and he returned as a mainstay in the champions’ squad.
Morgan has been linked with Birmingham and Sunderland (Image: GETTY )
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Hayes, 31, has been on the fringes of Rodgers’ plans but wages could be a sticking point.Another factor in any move could be Gary Mackay-Steven, who is in the last five months of his Pittodrie deal.
MLS side New York City have opened pre-contract talks with the winger, while there is also interest from England.