Pompey will be looking to get their promotion quest back on track when they make the long trip to Fleetwood on Saturday (3pm kick-off).
John Mousinho's men are still sitting at the top of the table, but a run of one win from six games means there are several sides breathing right down their necks.
Their next opponents are also desperate for points – but for an altogether different reason.
Fleetwood are sitting rock bottom of the League One standings, having won just four times all season.
Their most recent victory was against Exeter more than two months ago and the side head into this weekend's contest on the back of a four-match losing run.
It means that the Cod Army are currently eight points adrift of safety, as they try to avoid a return to the fourth tier for the first time since 2014.
Charlie Adam is the third man to be tasked with improving their form, with previous bosses Scott Brown and Lee Johnson dismissed in September and December respectively.
It finished 1-1 when the clubs met at Fratton Park just before Christmas, with Colby Bishop's penalty cancelled out by Josh Earl.
But the Blues triumphed on their last visit to the Fylde coast, as Bishop and Joe Pigott struck in a 2-0 victory almost exactly one year ago.
TEAM NEWS
Connor Ogilvie is available for selection again after returning to full training following an ankle injury.
But Tino Anjorin (hamstring), Josh Dockerill (knee), Regan Poole (knee), Alex Robertson (hamstring), Ben Stevenson (knee) and Zak Swanson (groin) are all still sidelined.
VIEW FROM THE DRESSING ROOM
Read the thoughts of John Mousinho and Tom Lowery ahead of the game.
HEAD TO HEAD
Overall
Pompey: 8 wins
Fleetwood: 3 wins
5 draws
On the road
Pompey: 6 wins
Fleetwood: 2 wins
0 draws
TICKETS
Pompey have sold their full allocation of tickets for this game. Click here to see a map of the ground.
OFFICIALS
Referee: Neil Hair
Assistants: Alistair Nelson and Karl Buckley
Fourth Official: Scott Jackson
MATCH COVERAGE
Domestic iFollow subscribers can listen to live commentary from Andrew Moon and Guy Whittingham by signing into their account and visiting the match centre from around 2pm on Saturday.
Overseas subscribers and match pass holders can watch all the action live, with replays and accompanying commentary.
Click here for more information about using iFollow on a matchday and click here for information on downloading the app, so you can access content on your mobile device.
We will have key updates throughout the game on Twitter and a detailed blog via the match centre.
There will be post-match reaction on the website and our official YouTube channel, with highlights to follow on Sunday.
Local listeners can hear commentary by tuning in to either BBC Radio Solent or Express FM (not available online).
ALSO IN LEAGUE ONE
All games kick-off at 3pm
Bristol Rovers v Blackpool
Burton v Charlton
Cheltenham v Carlisle
Exeter v Cambridge
Leyton Orient v Bolton
Lincoln v Derby
Oxford v Northampton
Peterborough v Shrewsbury
Port Vale v Wycombe
Stevenage v Barnsley
Wigan v Reading
LAST AWAY MEETING
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