Pride as well as points was on the line last Sunday but arguably more is at stake against the Baggies, who find themselves being dragged into the relegation mire.
Victory for Pompey will see them leapfrog Eric Ramsay’s side in the table, as they look to continue their upwardly mobile league form.
John Mousinho’s men, of course, have a injury crisis to contend with, with 10 men out going into the game and players likely to feature carrying problems.
There’s also the four new faces signed so far in the January window to throw in the mix - here’s how we think Mousinho will go on another big afternoon at PO4.
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1. Pompey predicted line-up
Here's how Pompey writer Jordan Cross believes John Mousinho's side will line up against West Brom. | Dan Minto/ProSportsImages
2. GK Nicolas Schmid
Watford error atoned for with world-class stops to repel Adam Armstrong in south-coast derby. More of the same required now. Photo: Graham Hunt
3. RB Terry Devlin
Testament to Devlin's progress that he now appears to be the first-choice right-back at present. | Graham Hunt/ProSportsImages
4. CB Regan Poole
Fingers crossed Poole makes it amid groin issue. With Aji Alese arriving but building his own fitness, the likelihood is there will be split shifts at the back among those available but carrying fitness issues. Photo: Graham Hunt