Competing on three fronts is certainly going to be a stern test for Pompey’s squad.
The League One promotion battle will resume following this weekend’s FA Cup fourth round clash with QPR.
But first is a visit from Peterborough on Tuesday evening (7pm kick-off), with a place in the Checkatrade Trophy semi-finals up for grabs.
It comes in the middle of a hectic period for Pompey and Kenny Jackett knows that there will have to be some changes.
The Blues boss said: “We realise that we’ve got a busy run of games – not just with QPR on Saturday, but then Luton and Doncaster next week in the league.
“As a squad we’ve got to be capable of dealing with that and we wouldn’t expect all our players to be involved in five games in 15 days.
“The majority of the senior teams left in the competition will be looking at their forthcoming league matches as well.
"We wouldn’t expect all our players to be involved in five games in 15 days."
“Peterborough have got quite a deep squad, although I’m sure they’ll also have one eye on facing Charlton at the weekend.
“But, like us, they’ll desperately want to win on the night – especially as we’re getting close to Wembley now.
“We’ve done well to get through a number of stages in this competition – and it’s been good to us so far. There have been some positive performances and we want to see that continue.
“Peterborough are generally a force in League One every season and finished just outside of the play-offs last time.
“They’re ahead of that now and definitely have the ability to finish in the top six – both in terms of the players and the manager.”
Academy graduates Matt Casey and Dan Smith are likely to be involved again after impressing at Southend in the last round.
Jackett said: “They have progressed well this season after coming out of youth football and having loan spells with senior men’s teams.
“They’ve also trained with us and had some reserve fixtures. They’ve shown a great deal of promise in those games.”
Pompey have no new injury concerns, although January signings Andy Cannon and Bryn Morris are both cup-tied.
Jackett said: “The only guys that are out at the moment are Luke McGee, Nathan Thompson and Oli Hawkins.
“We’ll assess Luke again in a couple of weeks, while I would expect the other two to be involved in full training next week, probably towards the back end.”