Tom Kilbey is to be released by Pompey.
The midfielder is leaving Fratton Park when his contract expires this summer.
A signing from Millwall in October 2007, Kilbey has gone on to make three Pompey appearances.
Yet Steve Cotterill has decided against awarding him a new deal.
The 20-year-old has already kicked his last ball for Pompey.
He is currently on loan at Lincoln until the end of the season.
And Cotterill is hopeful Kilbey can earn himself a new club from his Sincil Bank displays.
Cotterill said: ‘I have spoken to Tom to say there isn’t going to be an extension to his contract here, so he has needed to go out and start playing.
‘We had to weigh up how many times Tom is going to get out on the pitch between now and the end of the season when he can go and play 90 minutes if selected at Lincoln.
‘I can keep him here and be really selfish, but what is the difference between having six subs or seven subs?
‘We have hardly had seven subs all season so I am sure having six in the run-in isn’t going to make much of a difference.
‘Would Tom get on before three of the other subs? If I am honest, the answer to that is probably “no”.
‘I would put on a more experienced player and shuffle it around if that is what I needed to do.
‘Tom is not going to stay here.
‘Hopefully he can carve out a living for himself in the game somewhere because he is a real nice lad.
‘I really like him.’
Kilbey made his Pompey debut at Watford in January.
He later netted his maiden senior goal in the 3-1 FA Cup defeat at Brighton.