Saturday saw Pompey arrive at The Valley, stare at the pitch for a few minutes and then promptly get back in their coach to return to the south coast.
Heavy rain left referee Robert Madley with no option but to postpone the contest, with the sides deciding to try again this evening.
And Kenny Jackett’s men will be trying to avoid a third successive defeat when they come up against Charlton.
The teams are separated by a single point in the League One standings, with the Londoners two places behind in seventh position, having played two games more.
And both are aiming to close the gap on Lincoln and Hull, who currently occupy the automatic promotion spots.
Lee Bowyer guided the Addicks into the Championship, courtesy of a Wembley victory over Sunderland at the end of the 2018/19 campaign.
But their stay proved to be a short one, with a 4-0 defeat at Leeds on the final day of last term sealing their return back to the third tier.
Charlton have collected more points on the road than at their own patch in the first half of the campaign, with just four home successes.
They won 2-0 at Fratton Park back in October, also coming out on top in the most recent clash at The Valley in March 2019.
Jack Whatmough begins a three-match ban following his sending off against Lincoln, while Alex Bass (leg), Ben Close (hamstring) and Paul Downing (hamstring) are all sidelined.
Goalkeeper Lewis Ward is likely to be named on the bench following his recent loan arrival from Exeter.
Charlton are missing Ryan Inniss (quad), while Akin Famewo (ankle) is a doubt and Conor Washington is also unlikely to feature after picking up a knock.
The hosts could hand a debut to new signing Matt Smith, but deadline day arrival Diallang Jaiyesimi was not registered in time.
VIEW FROM THE DRESSING ROOM
Read the thoughts of Kenny Jackett ahead of the game.
HEAD TO HEAD
Pompey: 45 wins
Charlton: 37 wins
Pompey: 17 wins
Charlton: 20 wins
Referee: Lee Swabey
Assistants: Christopher Wade and Paul Lister
Fourth Official: Daniel Cook
Supporters in the UK can watch the action live – with graphics, commentary and replays – by purchasing a match pass for £10.
Subscribers will, as usual, be able to listen to listen to live commentary from Andy Moon and Guy Whittingham by signing into their account and visiting the match centre from 6pm. Click here for important information about commentary.
Please note that subscribers based in the UK and Ireland will still need to purchase a match pass in order to watch the game live.
If you purchased a pass for when the game was originally due to be played on Saturday, then this remains valid.
There will be post-match reaction on the website and our official YouTube channel, with highlights to follow on Wednesday.
ALSO IN LEAGUE ONE
Games kick-off at 7pm unless stated
Swindon v Wigan (6pm)
Accrington v Bristol Rovers
Blackpool v Northampton
Shrewsbury v Crewe