The Greek keeper,who joined City in the summer from Hartlepool, was alleged to have thrown a wobbler after news that City were taking Kasper Schmeichel on loan for the rest of the season and demanded his agent find him a new club.
After recovering from a throat operation, the keeper, whose conceding of goals on his right side did not go down well with sections of the City support, joined Nottingham Forest on loan until the end of the season.
He goes into Colin Calderwood's squad to face Doncaster on Friday night.