Peterborough United sold out the away end at Cambridge United very quickly
Posh were given an allocation of just 1463 unreserved seating tickets in the South Stand behind the goal at the Abbey Stadium.
The tickets went on sale last Friday and the last were sold on Wednesday afternoon.
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Hide AdIt could be a huge game for both clubs with Posh chasing promotion through the play-offs and Cambridge battling to avoid relegation.
Posh beat Cambridge 1-0 in front of almost 13,000 fans at London Road in October.