Played behind closed doors at the Blues’ Hilsea training ground, the fixture consisted of two 60-minute periods, with John Mousinho’s men using 22 players.
However, it was the League One Chairboys who ran out emphatic winners through goals from Garath McCleary, Richard Kone, Beryly Lubala and an unnamed player.
Mousinho was understandably angry after the final whistle – and here are our Pompey player ratings...
21. Sammy Silvera - 6
(Replaced Callum Lang on 61 mins) Good to see him back from the dead leg which forced him off against Bognor. Initially handed the number 10 role before moving to the left wing. One of those who has impressed in pre-season, with his energy and skill, but a little subdued on this occasion. Photo: Portsmouth FC
22. Harry Clout - 5
(Replaced Josh Murphy on 61 mins) The 17-year-old didn't have the same impact as against the Hawks and Bognor, providing a timely reminder of where he is in his development. Struggled to find a way down the left flank and comfortably controlled. Photo: Alex Shute
23. Christian Saydee - 5
(Replaced Kusini Yengi on 61 mins) With Colby Bishop still missing, Saydee was again asked to lead the line. However, he doesn't look anywhere near as effective as a centre-forward compared to when playing a little deeper. Doesn't look the answer in that role. Photo: Jason Brown