Nathan Ashmore is to join Pompey for full-time training.
The Blues have reached an agreement with Gosport Borough which allows the goalkeeper to work with them during the week.
However, the 23-year-old will remain a Borough player and will play no part in Pompey’s pre-season fixtures.
Guy Whittingham made the approach after watching Ashmore in yesterday’s Pompey triallist friendly with an Aldershot XI.
Although given little to do in the 2-0 success, the Blues boss and goalkeeping coach Alan Knight were convinced enough to ask Gosport manager Alex Pike, who was also present, for permission to take a closer look at the player.
Now Ashmore will take another step towards achieving his goal of breaking into league football.
Whittingham said: ‘Nathan works at South Downs College but is not doing anything at the moment.
‘So we have talked to Alex Pike and said: “We’ll keep an eye on him, why doesn’t he come and train with us?”
‘It’s always nice to have another goalkeeper.
‘Nathan is up for it, we are up for it and Alex is up for it, so it’s something I think will work really well.
‘Nathan can come in and train with us. You can never have too many goalkeepers to shoot at, and it will be nice for him to come and train full-time.
‘He didn’t have a lot to do yesterday but I have seen him a few times in and around the local area so I know what he is like.
‘He is a good lad, a good kid. He’s not going to disrupt things coming into us and will enhance it because it’s another keeper.
‘And if there’s scope that he does well, then he is in the right place and we have already got him in.’