Charlton head back to The Valley on Tuesday evening, hoping to arrest their recent home form and build on the four points won on the road in the last week.
The Addicks have gone eight games in SE7 without tasting victory, in stark contrast to their form on the road which has seen them go five unbeaten and earn four wins, two draws and just one defeat in their last seven.
With 13 games remaining, Lee Bowyer's men will need to transfer that form to home turf if they are going to stake a claim for a ply-off position. They currently sit in ninth position, four points off Portsmouth in sixth who have played a game less, although Accrington Stanley and Ipswich Town, who sit directly above the Addicks, have two games in hand.
Northampton, meanwhile, come to south London in the midst of a fight for survival, with the Cobblers sitting in 19th position, two points above the drop zone.
They will be buoyed by their performances over the last seven days having earned back-to-back victories, including a stunning 4-1 victory over Portsmouth on Saturday which saw them four goals to the good by half-time.
Full information on how you can get your streaming pass for Tuesday's game can be found below...
Ryan Inniss has returned to full training, but will need some U23 minutes before he can make his first-team return. Alex Gilbey may be available having returned to training, but Adam Matthews is a doubt after the right-back limped out of Saturday's draw at Oxford.
Akin Famewo complained of a tight hamstring following Saturday and Bowyer will need to check on his fitness ahead of Tuesday evening, but Darren Pratley will be available again after serving his two-match ban.
Northampton will be without injured midfielder Scott Pollock.
Charlton Boss Lee Bowyer: "I think this is going to be a decisive time. The three home games, there is no getting away from it, we have to turn it around [at home] and we have to turn it around now. We need to change our home form that has to start on Tuesday.”
Northampton caretaker boss Jon Brady: “We are the underdogs again. Charlton may be lacking in form but they are an ex-Premier League team and they are expected to be in the play-offs at the very least.
“We’ve got nothing to fear. We’ve shown that we can beat top teams and we will be giving it our all.
Charlton and Northampton have met on 34 previous occasions with the Addicks winning 12, the Cobblers nine and the remaining 13 ending in draws.
The reverse fixture saw Charlton claim a 2-0 victory in October thanks to Darren Pratley and a Jack Sowerby own-goal.
The last meeting at The Valley resulted in a 4-1 win for the Addicks in August 2017, with Josh Magennis and Ricky Holmes both scoring, before Jake Forster-Caskey added an injury-time double.
Paul Howard will be the man in the middle on Tuesday evening. He has taken charge of 21 games this term, dishing out 60 yellow cards and three reds.
With 2020/21 being Howard's first season as an EFL referee, this will be the first time he has refereed a Charlton fixture.
Damit Bandara and Nicholas Cooper will be his assistants with Martin Holmes as the Fourth Official.
The match will be played behind closed doors and supporters are reminded to maintain social distancing guidelines and to stay away from the stadium when the match is taking place.
The March edition of Valley Review is now available to purchase online. The magazine covers all three of the Addicks' home fixtures in March and features an interview with Jayden Stockley. Click here to purchase.
Supporters can buy Valley Gold Jackpot Tickets online for the fixture. For every £1 spent on a Jackpot ticket, half goes to the club's academy to help produce the stars of the future on the pitch. The other half goes to the two winners of a cash prize.
Click here for your chance to win up to £2,000.
Supporters can follow all the build-up to the game on Charlton's official Instagram account, official Twitter account and Facebook page as usual.
Charlton’s live matchday streaming service has received a major overhaul with the introduction of Valley Pass Live, a new multi-camera show hosted by Scott Minto. He will be joined by guest pundits Alan Curbishley and Jonathan Fortune for the broadcast which begins at 6.15pm.
Supporters will be able to watch Charlton league games this season on Valley Pass Live. All league games, except those selected for UK or international broadcast, will be available to purchase with a match pass which costs £10 in the UK and Ireland and internationally.
Supporters living abroad can purchase a season live video pass for £195, which will give them access to every game the club is allowed to stream internationally during the 2020/21 season.