Andy Awford wants to keep Rhys McCabe for the rest of the campaign.
The Scottish midfielder’s initial one-month loan from Sheffield Wednesday is scheduled to expire this week.
The impact of Richie Barker’s final signing had been significantly underwhelming before last weekend’s victory over Dagenham & Redbridge.
But after coming off the bench to replace the injured Simon Ferry, McCabe weighed in with two assists in the 4-1 victory.
With Ferry now expected to be out for the season, it has become even more crucial to retain the former Rangers man, who has made three appearances so far.
And Awford is keen to ensure the 21-year-old sticks around.
Pompey’s caretaker boss said: ‘Rhys is ready, that’s the important thing.
‘We know if we need to call upon guys such as him, they know their roles and responsibilities.
‘He will see the season out with us if I have my way because he is important to us, so we will look to do that.
‘He’s a good footballer and we thank Sheffield Wednesday for letting us have him. You saw on Saturday that he has got ability and I’m delighted to have him as part of the group.
‘It was a great ball for Michael Drennan’s second goal and I’m really pleased for him because when you come on loan you expect to play a lot of games and under me he hasn’t started.
‘But when he came on against Hartlepool the other week he did fantastically well – and the same on Saturday.’