Danny Cowley’s side are out to make it seven wins on the spin against the League Two outfit at Fratton Park.
But how will the Blues boss go as he looks to keep the wins going against Simon Weaver’s men?
We’ve done our digging and come up with what we believe is the like Pompey line-up.
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13. Alex Bass
Found himself back on the bench against AFC Wimbledon recently - and could count himself unfortunate to be there. Photo: The News
14. Harvey Hughes
A left-back Cowley has used in the middle before. Has been travelling to games with the first-team squad. Photo: Robin Jones
15. Liam Vincent
Not quite ready for first-team inclusion but has been a face around the squad at games. Photo: JPIMedia
16. Louis Thompson
Could be one for the midfielder to sit out with three games in eight days. Photo: The News