Wednesday is the last day for Cambridge tickets to be posted out to U's supporters.
Fans wishing to have tickets posted out to them for the match at the Cambs Glass Stadium will need to purchase by 1pm on Wednesday afternoon.
Tickets for the game come off sale on Thursday afternoon at 2pm on the Ticket Office windows and 3pm on the phones.
Purchased tickets can be collected from the U's Ticket Office on Thursday and Friday until 2pm, after which time they'll be taken to Cambridge for collection.
Tickets are also available on the day of the game, although prices rise slightly on matchday.
To buy your tickets, call 01206 755161.