Roberts is struggling for game time after opting to move to Spain, rather than another loan at Celtic.
The 21-year-old spent two and a half years at Celtic after first joining the club in January 2016 on an 18-month loan deal, before returning to the club for the 2017-18 season for another season.
Having returned to City in the summer, there were claims that the Scottish champions were interested on landing the former Fulham star on loan again, with his £10,000-a-week wages more than affordable (Spotrac).
Instead, the England youth international opted for change and City sent him to Spain to play for Girona. But he has managed just 67 minutes of action spread across five substitute appearances.
During 78 appearances for Celtic, Roberts scored 18 goals as well as laying on 26 assists and played a crucial part in Brendan Rodgers' double-treble winning side.
Some Celtic fans believe he should have returned to Celtic once again and continued to develop north of the border, rather than going to Spain where he is struggling to get game time.
I expected him to be a huge success wherever he went. I'd love to think Brendan could take him for a relatively low price in January. His limited appearances in Spain might make that appealing for all concerned. The signing of Paddy would give the support and team a huge lift.— Gerry McMahon (@RedGer1963) October 11, 2018
Are we waiting on City to release him at his contracts end in 2020?— Henry Duluth (@HenryDuluth) October 11, 2018
Bring him home— Limp Griff Meister (@LimpMeister) October 11, 2018
We should sign him permanently— 7inaRowHereWeGo (@6inaRowHereWeGo) October 11, 2018
Maybe Celtic should have made more than a derisory offer if they rate him that highly.— Alan Richardson (@AlanR1965) October 11, 2018
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