Amine Linganzi is set for a spell on the sidelines.
The central midfielder is expected to sit out tomorrow night’s trip to Crawley with a hamstring issue.
Amine has played a lot of matches in a quick space of time for us, so we believe it is a little bit of fatiguePaul Cook
Pompey’s medical team believe Linganzi’s injury is fatigue related and, as a result, is likely to be taken out of the side.
The former Blackburn player has established himself in Paul Cook’s side following a sizeable period served as a fringe player.
However, seven games in 29 days have taken their toll, culminating in his substitution against Crewe after 50 minutes.
His absence tomorrow evening would put Danny Rose and Stanley Aborah in the reckoning to serve alongside Michael Doyle.
Regardless of who gets the nod for a match which could see the Blues break into the top three, Cook believes the summer arrival needs to rest.
Pompey’s boss said: ‘We think Amine is just suffering from a bit of fatigue, he has played a lot of games.
‘It’s his hamstring now, this is moving around his body and is down to tiredness and the amount of games.
‘Amine has played a lot of matches in a quick space of time for us, so we believe it is a little bit of fatigue, so watch this space.
‘At the minute, I wouldn’t say he is out, but I also wouldn’t say he is playing.
‘He’s a big doubt, we think his injuries are down to general fatigue.’
Linganzi was also withdrawn in the midweek draw to Morecambe, albeit on that occasion with a groin concern.
He has just recorded seven successive league starts – his longest spell in Pompey’s first-team.
Overall, the free-transfer recruit has made 21 appearances, scoring once, during a maiden season on the south coast.