Pompey progressed to the second round of the competition on penalties, with substitute keeper Craig MacGillivray saving three of the hosts’ efforts in a 3-1 shoot-out win.
The game finished 3-3 after 90 minutes, with Ronan Curits, Gareth Evans (penalty) and John Marquis all netting as the Blues struggled to keep pace with their League Two opponents.
1. Alex Bass
(replaced by Craig MacGillivray on 46 mins): Paid the price of shaky first half - 4
Photo: Jason Brown
4. Sean Raggett
Recovered in second half after poor opening 45 minutes - 5
Photo: Jason Brown