But how does John Mousinho approach the game, as he goes in search of a massive three points in the bid to stay in the second tier?
Mousinho has indicated there will be changes for the meeting with John Eustace’s side - and this is how Pompey writer Jordan Cross thinks he will go.
.jpeg?crop=4:3&trim=&width=800)
17. Sub 5 Kaide Gordon
Depending on how the game unfolds, either Blair or Gordon's energy could be required - especially as and when Ritchie tires. | Paul Thompson/ProSportsImages
18. Sub 6 Harvey Blair
Has been favoured to add energy off the bench, with some flashes of quality evident on last outing at Millwall. Photo: Jason Brown
19. Sub 7 Adil Aouchiche
Started on Wednesday night but didn't offer the influence hoped for. Will have a role to play, whether a starter or off the bench. Photo: Jason Brown
20. Sub 8 Christian Saydee
Probably the most nailed off the attacking options on bench at present. Photo: Jason Brown