John Mousinho’s men have picked up 10 points from a possible 12 and go into the game two points off the play-offs.
Meanwhile, Burnley have hugely struggled since their Premier League relegation, this week setting a new English record for the longest period without a home league win.
The Clarets will be looking for a new manager bounce, however, after the appointment of Fabio Celestini this week.
Both teams have injuries going into the game, though Pompey are set to welcome Josh Murphy and Conor Shaughnessy back into the fray.
Here’s how Blues writer Jordan Cross thinks Mousinho will go.
17. Sub 5 Ebou Adams
The General has been bossing games, with much of the impact coming off the bench as he energises Pompey. | Jason Brown
18. Sub 6 Odin Bailey
Still waiting for more regular football, but Mousinho clearly trusts the summer capture. | Jason Brown
19. Sub 7 Josh Murphy
What a lift Murphy's name on the team-sheet will give Pompey fans at Turf Moor. | Jeff Mood/ProSportsImages
20. Sub 8 Tyrese Shade
Every chance Shade starts as a nine or on the wing, with it close calls in both departments. | Jason Brown