After a three-week break, Pompey return to Fratton Park to take on Lincoln on Saturday (3pm kick-off).
John Mousinho’s side will be aiming to keep the spot at the League One summit they secured by winning at Barnsley a few days ago.
Their opponents were also in midweek action, although it was a much-changed side beaten at Derby in the group stages of the EFL Trophy.
Since losing at Bolton on the opening day of the campaign, the Imps have not tasted defeat in the league.
They were held to a 1-1 draw by Carlisle last Saturday and currently sit 10th in the standings, but are just four points behind the Blues with a game in hand.
Mark Kennedy wants to ensure they stay within reach of the leading pack as he tries to improve on last season’s placing of 11th.
He will also be keen to ensure heads are not turned by next Wednesday’s exciting Carabao Cup clash with top-flight West Ham at Sincil Bank.
It is Pompey who have the better record in meetings between the clubs, although both of last term’s clashes ended goalless.
Josh Dockerill (knee), Tom Lowery (knee), Anthony Scully (knee) and Kusini Yengi (ankle) remain sidelined for Pompey.
There are also doubts over the fitness of Connor Ogilvie (groin) and Christian Saydee (hamstring), while Zak Swanson is missing due to a family issue.
Reeco Hackett is expected to feature for Lincoln against his former club after making the switch over the summer.
But ex-Fratton loanee Tyler Walker is out with a hamstring problem and fellow striker Ben House (hip) will also be absent for the visitors.
HEAD TO HEAD
Pompey: 13 wins
Lincoln: 6 wins
At Fratton Park
Pompey: 7 wins
Lincoln: 3 wins
Seats have almost completely sold out as fans flock to see in-form Pompey in action.
If you are heading to the game, then click here to read our matchday guide and find out what is happening around the ground.
Referee: Paul Howard
Assistants: James Vallance and Conor Farrell
Fourth Official: Neil Hair
Overseas subscribers and match pass holders can watch all the action live, with four-camera coverage and accompanying commentary.
There will be post-match reaction on the website and our official YouTube channel, with highlights to follow on Sunday.
ALSO IN LEAGUE ONE
All games kick-off at 3pm
Blackpool v Reading
Bolton v Peterborough
Bristol Rovers v Wigan
Burton v Fleetwood
Cambridge v Port Vale
Carlisle v Derby
Charlton v Wycombe
Cheltenham v Stevenage
Leyton Orient v Shrewsbury
Northampton v Barnsley
Oxford v Exeter