Pompey will try to maintain their late surge for an automatic promotion spot when they host Rochdale on Saturday.
Kenny Jackett’s troops are currently sitting in fourth position and are just three points behind Sunderland in second.
The sides both have a game in hand on Barnsley sandwiched between them and play each other later this month.
But the Blues also know that victory this weekend would mean they are guaranteed at least a place in the play-offs.
Their next opponents are also desperate for points, however, as they try to stave off the threat of relegation.
Dale climbed out of the bottom four with a narrow midweek success at Accrington, courtesy of a strike from Ollie Rathbone in the second half.
It means that the Spotland outfit have lost just once in six games – winning three of those – since Brian Barry-Murphy replaced Keith Hill as manager.
Pompey have already beaten Rochdale twice on the road this term, with a 3-1 league triumph followed by FA Cup progress in the second round.
They also came out on top in the most recent Fratton meeting, with Brett Pitman bagging a debut brace on the opening day of last season.
Andy Cannon appeared for the reserves in a midweek win at Fulham, but is not yet ready for a return to first team action following a thigh injury
Dion Donohue (groin) and Viv Solomon-Otabor (calf) are close to full fitness and could feature in another friendly against Bournemouth next Tuesday.
Luke McGee (hand) is available for selection and Jack Whatmough (knee) is still sidelined, but there are no new worries.
Rekeil Pyke (hamstring) is out for the visitors, but Zach Clough could feature after shaking off an ankle problem.
HEAD TO HEAD
Pompey: 7 wins
Rochdale: 1 win
At Fratton Park
Pompey: 3 wins
Rochdale: 0 wins
There is limited seating available online here and fans can take advantage of cheaper prices when tickets are bought in advance.
Subject to availability, they will also be sold from the ticket offices in Anson Road and Frogmore Road from 9am on Saturday.
Overseas subscribers and match pass holders can watch the action – now with on-screen graphics – and commentary will begin from around 10 minutes before kick-off.
ALSO IN LEAGUE ONE
Accrington v Walsall
Barnsley v Fleetwood
Blackpool v Peterborough
Bristol Rovers v Bradford
Charlton v Luton
Doncaster v Plymouth
Gillingham v Shrewsbury
Oxford v AFC Wimbledon
Scunthorpe v Burton
Southend v Wycombe
Sunderland v Coventry
LAST LEAGUE MEETING