Pompey are looking for 11 heroes to step forward in enemy territory.
But who will get the nod as John Mousinho’s men collide with Southampton in the south-coast derby?
Fitness and form are big factors, as the Blues head coach faces some huge decisions for the St Mary’s showdown.
Here’s how Pompey writer Jordan Cross think Mousinho will go in Sunday’s high-noon showdown.
1. Jordan Cross's predicted Pompey line-up
Here's how Blues writer Jordan Cross thinks John Mousinho will go against Southampton. | Stephen Flynn/ProSportsImages
2. GK Nicolas Schmid
The international break may have offered the moment to reflect on the goalkeeper battle. Daniel Bielica usurped Nico Schmid for four games with two clean sheets, but some worrying moments too. We're just going for Schmid's cool temperament to be favoured, in such a big occasion at St Mary's. | Portsmouth Football Club/Jason Brown No further distribution permitted without prior written permission/agreement
3. RB Zak Swanson
Another big Pompey call is who gets the nod at right-back. Zak Swanson was favoured over Terry Devlin against Blackburn, but it's pace again the top-drawer threat of Leo Scienza which has us giving him the nod for this one. | Jason Brown
4. CB Madiodio Dia
This is another monumental decision for Mousinho. Dia has produced erratic form and the question is can he be trusted to perform on such an occasion? Players need to step up on such occasions - and there's future hero status for the Senegal man if he can deliver. | Jason Brown