Pompey fans quickly snapped up the full allocation of tickets for Saturday's League One match at Cambridge.
It means that John Mousinho's men will be backed by around 1,400 Blues fans at the Abbey Stadium.
Any fans collecting their tickets on the day of the game should visit the ticket office located off Newmarket Road.
Supporters who have bought concession tickets are advised to bring proof of age identification with them to the game.
Official coach travel can be booked through Lucketts Travel, with more information available here.
Click here for information about visiting Cambridge that has been produced by the home club.