Pompey will ring the changes for Tuesday evening’s Checkatrade Trophy clash.
Fellow League One outfit Gillingham are the visitors to Fratton Park for the opening round of fixtures in Southern Group A.
The Blues side is going to look different from the one that beat Plymouth in comfortable fashion at the weekend.
But – with Andre Green and Joe Mason possibly making their debuts – Joe Gallen believes there will still be plenty of talent on display.
Pompey’s assistant manager said: “It’s fair to say that there will be some changes – the fans pay their money and deserve to be aware of that.
“But, like I said ahead of the League Cup game, it will still be a recognisable team that we put out. In fact, it will be a very good team.
"Things have been ticking along nicely for us so far, so the guys that are involved on Tuesday have an opportunity to impress."
“It’s pretty exciting to see some guys who either haven’t played for us yet or at least haven’t played much this season.
“They’ll go out in front of the manager and it’s up to them to show him that they’re ready to dislodge some of the players who currently have the shirt.
“We’ve got a squad full of quality – that showed on Saturday with the substitutes we were able to make. It’s a positive state of affairs.
“Things have been ticking along nicely for us so far, so the guys that are involved on Tuesday have an opportunity to impress.”
Pompey are facing a Gills side that triumphed in their opening two league games, but have not tasted victory since.
Gallen said: “We can’t get through on the night in the league format, but we’re still looking to do well and get the win.
“Gillingham played very well against us last season and they have guys in the squad who can be a handful. There is plenty of experience and they’re usually a tough nut to crack.”
Oli Hawkins, Anton Walkes and Jack Whatmough will not feature on Tuesday after collecting injuries against Plymouth.
Gallen said: “There’s a grading system for muscle injuries – which all three of them have – and we’re not sure of the severity yet.
“Our instincts tell us that none of them are particularly long-term, but we’re sending them for scans to see.”