Pompey have sold their full allocation of tickets for the Good Friday (April 19) visit to Burton.
It means that Kenny Jackett's side will be backed by more than 1,000 fans for the Pirelli Stadium contest, which kicks-off at 3pm.
Those who were unable to secure a ticket for the game will be able to watch the action live on Sky Sports Football.
Supporters with concession tickets are advised to bring proof of age identification with them to the game.
Official coach travel can be booked online here or by calling Lucketts Travel on 01329 237000.