Pompey travel to Peterborough tomorrow with the stakes high in the League One promotion showdown.
Mousinho has fitness and injury issues to contend with, as he's tasked with blunting the division's more potent attacking force.
And then there is the big talking point of who starts up front out of Kusini Yengi and Colby Bishop?
What does Mousinho do in terms of formation, too, after switching to a back three against Burton on Tuesday night?
Here's how we think the Pompey boss will go against Darren Ferguson's side.
13. Sub 1 Matt Macey
Hopefully won't be required, but reassuring back-up if necessary. Photo: Jason Brown
14. Sub 2: Zak Swanson
Every chance right-back will be required at some stage at London Road. | National World
15. Sub 3 Ryley Towler
Will be wondering what he has to do to get a start, after he was left on the bench despite Pompey moving to a back three on Saturday. | National World
