Guy Whittingham is prepared to put his faith in John Marquis in the face of Pompey’s attacking injuries.
Marquis has extended his loan spell at Fratton Park from Millwall for another month, after his original agreement came to a close at the weekend.
Tom Craddock remains sidelined after a succession of knee niggles, while calf and Achilles issues are keeping Connolly out of action.
They have been joined by John Sullivan in the treatment room after the keeper saw a chiropractor for a back injury.
Simon Ferry and Danny East return to the squad tonight for the Wycombe clash after hamstring injuries.
And Trevor Carson replaces Phil Smith in goal after missing Saturday’s win over Bury, as part of the terms of his loan stay from the Shakers.
Marquis will be expected to lead the line after two goals in four starts.
And Whittingham is happy to have the 21-year-old remain at the club.
He said: ‘It’s (loan deal) been extended for another month for John.
‘John likes it here, is happy and is playing. We’re pleased to have him for another month.
‘It was the obvious thing to do with Tom and David not being quite right.
‘It’s a shame for David and Tom at the moment.
‘We need our best players in the team and David is one of those, and I’m sure Tom will be when he’s fit.
‘Simon Ferry and Danny East are in the squad, and they weren’t at the weekend, and Trevor Carson comes back in for the game.
‘John’s gone to see a chiropractor, so hopefully that will get sorted.
‘The problem came on last week. He didn’t train Thursday and yesterday. It’s not too serious.’
Pompey welcome Wycombe to Fratton Park tonight on the back of two wins without conceding in their past two games on home soil.
The challenge is to avoid a return to the poor Fratton form which blighted the early part of the season.
Whittingham added: ‘Up to a couple of weeks ago our away form was better than our home form.
‘So we have to make sure we don’t go back to where we were before.
‘We’ve had a couple of clean sheets and good wins at home and we have to build on that.’