Rafael Benitez has admitted there is no way back for Jack Colback at Newcastle.
The 28-year-old midfielder continues to train with the club's under-23s after being told during the summer that he had no future at St James' Park and could leave.
However, a transfer window move failed to materialise and, despite Benitez having latest signing Mikel Merino potentially missing for several weeks with a lower back problem, a man who was called into the England squad back in 2014 will not be drafted back into the senior set-up.
Asked about Colback ahead of Saturday's Premier League clash with Bournemouth at St James' Park, Benitez said: "He's training in the academy with under-23s.