Michael Jacobs has been added to the injury list after suffering a recurring knee injury that has ruled him out for the remainder of the season.
It’s a big blow for Danny Cowley, with Ellis Harrson (knee) also out for the campaign while Jordy Hiwula (ankle) may only feature again if the Blues make it into the play-offs.
And despite John Marquis now available having served a three-match suspension, he’s also been struggling with an ankle problem.
One option Pompey could look to turn to is signing a free agent for the rest of the term.
The Blues do currently have 22 players aged above 21 registered and would have to gain permission from the EFL to make a change to their squad.
The EFL would have to regard it as ‘truly exceptional circumstances’.
There aren’t too many unattached players who would be the ilk Pompey need in a promotion push.
However, here’s a handful who might be able to do a job...
1. Marc Pugh
The former Bournemouth favourite has been linked with Pompey in the past. Pugh spent the first half of the season at Shrewsbury, scoring one goal in 10 games, but has not yet found a new club. Photo: Andrew Redington
2. Nathan Dyer
The winger won the Premier League with Leicester in 2016. However, Dyer departed Swansea following their play-off semi-final defeat last season. He was training with the Swans at the start of this term. Bundles of Premier League experience but wages wouldn't be cheap. Photo: Stu Forster
3. Nathan Oduwa
The former Spurs man was an England youth regular earlier in his career. Oduwa has recently played across the continent in Slovenia, Denmark, Israel and most recently Ireland with Dundalk. He scored twice in 16 games for Dundalk, with four outings in the Europa League. Photo: Charles McQuillan
4. Jordan Green
The winger helped Barnsley to League One promotion in 2018-19. Green was on loan at Southend this term before having his contract at Oakwell terminated in January. Photo: George Wood