Pompey have seen the gap to the drop zone cut from 10 to four points, as Valerien Ismael’s side arrive at PO4.
So it’s a big home clash for the Blues, with big calls for John Mousinho to as he welcomes new boy Alex Milosevic and fit-again pair Jordan Williams and Christian Saydee to his options. There’s no Kusini Yengi, however, with the striker starting at Deepdale last time out.
We’ve considered personnel and formation - and this is how we think Pompey will line up against Rovers.
13. Sub 1 Jordan Archer
Schmid understudy role is Archer's, despite Ben Killip arriving in January. Photo: Jason Brown
14. Sub 3 Jordan Williams
Mousinho would've had a close eye on Williams with a view to a possible return straight into the starting XI, but role on the bench most likely for this one. | The News
15. Sub 3 Alex Milosevic
Every chance the Sweden international starts, as he's declared fit for Blackburn - if not could well impact the game at some point. | Portsmouth FC
16. Sub 4 Zak Swanson
There is a decent possibility one of the right-backs misses out on a squad place, but just leaned to having all three for this one. | Getty Images