The Geek custodian arrived at Parkhead in the summer of 2020 from AEK Athens but failed to nail down a starting spot at the club.
Barkas’ struggles continued last season as he was only the third choice shot-stopper under boss Ange Postecoglou.
The Hoops manager deemed Barkas surplus to requirements at the club and the goalkeeper completed a loan move to Utrecht on Tuesday.
Celtic have been looking to permanently offload Barkas in recent windows but according to Greek outlet Sportime, the loan deal between Celtic and Utrecht does not have an option to buy clause.
Even if the Greek impresses on loan in the Netherlands next term, Utrecht will have to sit at the negotiating table with his parent club Celtic if they want to sign him on a permanent deal.
The Hoops custodian’s current deal at Parkhead runs through until the summer of 2026.
But Barkas will have the opportunity to breathe life into his stalled career at the Eredivisie outfit, which will be his temporary home for next season.
