Andrew Moon
BBC Radio Solent's Portsmouth commentator
A stunning result and a fully deserved victory. This was not a smash-and-grab or counter-attacking performance. Portsmouth more than matched Millwall's intensity and created more opportunities.
The midfield trio of Ebou Adams, Marlon Pack and John Swift looked beautifully balanced. Connor Ogilvie and Regan Poole are an excellent defensive partnership, and Gustavo Caballero and Millenic Alli caused problems on the flanks all day.
Crucially, Pompey's set-piece defending has significantly improved. To outplay Millwall in both boxes is some achievement given where Pompey were less than two months ago.
The January signings have transformed Portsmouth. They still have a lot of work to do to secure their Championship status, but right now they do not look like a side battling at the wrong end of the table.
However, injuries continue to limit John Mousinho's options. Maintaining these levels for two more matches this week in an intense period will not be easy, but Pompey are not a side you would want to play at the moment.