Get the City transfer window latest, team news, match updates and analysis delivered straight to your inbox Sunderland fans believe Manchester City loanee Callum Doyle will have the greatest impact from their nine new summer signings.
It was announced in July that Doyle had joined the North East club on a season-long loan and he's already made a stellar impression.
Sunderland boss Lee Johnson described Doyle as an 'outstanding young talent' upon the completion of his temporary switch in July and the City academy graduate has since started every one of the former Premier League club's games in the third division.
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