Celtic assistant manager Chris Davies has said there is "constant dialogue" about the possibility of Manchester City winger Patrick Roberts returning to the club.
Roberts, 20, spent 18 months on loan at the Scottish Premiership club before returning to City at the end of last season.
The England youth international has been linked with a move to French club Nice but Davies says the Scottish champions still retain hope.
"They have been talking and the situation is always open to a certain extent because the transfer window is still open,'' Davies said. "Patrick is someone we really enjoyed working with and there is obviously always going to be a home here for Patrick if that suits everybody.