Ben Chorley is aiming to reclaim his Pompey place against Luton following his enforced exclusion.
The central defender’s run of two matches in the starting line-up came to a controversial end at Northampton following a debated red card.
In his last three games we have let in one goal when he has been in the team, with the results at Wycombe, Northampton and also at home to OxfordAndy Awford
The Blues’ captain was dismissed in stoppage-time of the 1-0 defeat having been adjudged to have led with his arm on Brendan Maloney.
It was a decision boss Andy Awford disagreed with but clubs are unable to appeal a sending off which is the result of two yellow cards.
Chorley was therefore banned for last weekend’s disappointing 1-1 draw at 10-man Accrington.
That allowed fit-again Jack Whatmough to retake his place as part of Pompey’s back three.
Chorley is now available for the Fratton Park clash with the Hatters tomorrow – and the challenge is on to break back into the side.
Awford said: ‘I went to speak to the referee after the Northampton game and he felt Ben led with his arm.
‘I thought it was pretty innocuous but there is no appeal process for two yellows, you have to take it on the chin.
‘In his last three games, we have let in one goal – with the results at Wycombe, Northampton and also at home to Oxford.
‘Jack is unfortunate he gets injured, which opens the door, while Ben was unfortunate at Wycombe when he got injured but that is what the squad is for.
‘Ben was disappointed, of course he was, but that’s football isn’t it.
‘The team has been very solid of late and not let in many goals, period.
‘That’s the importance of the squad, a suspension means somebody else is in and that is when you need your squad.’