Pompey will aim to halt their run of draws by beating struggling Accrington at Fratton Park on Saturday (3pm kick-off).
Four successive stalemates have effectively ended hopes of reaching the play-offs with three games remaining.
But while the Blues have been left frustrated in their efforts to escape League One, their next opponents are desperate to remain there.
Stanley have not finished lower than 17th since reaching this level by securing the fourth tier title in 2018.
However, only already relegated Forest Green are currently keeping John Coleman’s men off the foot of the table.
And there is a three-point gap – four if you take into account their inferior goal differece – to bridge to safety.
The Reds head south from Lancashire having lost eight of their past 10 games, collecting just four points in the process.
That sequence of results includes a 3-1 defeat to Pompey at the Crown Ground last month in a snowy contest that saw both sides reduced to 10 men.
The Blues also had a man sent off in the previous season’s Fratton contest, although Marcus Harness’ early dismissal failed to stop them from romping to a 4-0 victory.
TEAM NEWS
Ronan Curtis (knee), Jayden Reid (knee) and Zak Swanson (groin) remain sidelined, while Joe Morrell serves the final game of a four-match ban.
Accrington have been beset by injury problems throughout the season, but have no new problems, although Liam Coyle remains suspended.
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
Accrington: 4 wins
8 draws
At Fratton Park
Pompey: 5 wins
Accrington: 2 wins
2 draws
TICKETS
There are a limited number of seats still available to buy, so click here to secure your seat before they are all gone.
Click here to read our matchday guide and find out what is happening around the ground as we celebrate ‘community ownership day’.
OFFICIALS
Referee: Darren Drysdale
Assistants: Adrian Tranter and Justin Amey
Fourth Official: David Harrison
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 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 updates throughout the game on Twitter and the match centre. You can also see behind-the-scenes content on our Instagram story.
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
Barnsley v Oxford
Bolton v Shrewsbury
Charlton v Morecambe
Cheltenham v Forest Green
Derby v Burton
Fleetwood v MK Dons
Peterborough v Ipswich
Plymouth v Cambridge
Port Vale v Bristol Rovers
Sheffield Wednesday v Exeter
Wycombe v Lincoln
LAST FRATTON MEETING