With Portsmouth expected to bring around 1300 fans with them to Cleethorpes on Saturday, we are expecting a total gate of around 6500 plus for the Sky Bet League Two clash.
There is still good availability throughout the stadium but the Upper and Lower Youngs stand are selling out fast.
You can secure your seat for the big game online
, by calling 01472 605050, or by visiting the ticket office at Blundell Park.
Early Bird prices are available right up until midday on Saturday.