Kenny Jackett is confident Pompey’s injuries will not prove too serious.
The Blues were hit by a trio of first-half issues in Saturday’s 3-0 romp over Plymouth.
Oli Hawkins (back) was forced off before the break, with Jack Whatmough (hamstring) and Anton Walkes (groin) going off at the interval.
Jackett said: ‘We got three injuries in the first half, which was unusual.
‘Oli has felt his back quite badly, hopefully it’s not too bad. That’s the best of them.
‘Whatmough has a tight hamstring and Walkes a groin injury.
‘None of them seem too bad, though.
‘It’s slightly frustrating and unusual, but we have the team and the squad to cope with it.’