Today marks the first day of the transfer window, with League One clubs having the rest of the month to complete deals they believe are necessary.
It represents an opportunity for all 24 sides to strengthen and bolster their ambitions for the remainder of the season.
Pompey are currently targeting a box-to-box midfielder who's capable of replacing the influential Andy Cannon should he pick up an injury.
But what positions and players are the Blues’ rivals aiming to sign throughout the window? And which teams could see key men be prised away by potential suitors?
Scroll down and click through the pages to see what likes of Sunderland, Ipswich and Hull have planned...
9. Fleetwood Town
Joey Barton has made it clear that Ched Evans is no longer in his plans and he's been linked to Preston. As a result, the Cod Army could target a replacement striker. They also may recall keeper Billy Crellin from Bolton, having fallen down the pecking order. Photo: Lewis Storey
10. Gillingham
Steve Evans has admitted the Gills are looking to recruit but conceded 'a lot of the players we are targeting would be available subject to their clubs strengthening their group so there is always a chain reaction as to when you can strengthen.' Photo: Graham Hunt
11. Hull City
The TIgers are pushing for an immediate return to the Championship and Grant McCann revealed the window is 'an opportunity to bring in some players that could make us stronger and give us the best opportunity to have a push at the top end of the league'. Photo: George Wood
12. Ipswich Town
Paul Lambert's admitted the Tractor Boys need 'a little help in their promotion bid. Town have been linked with Barnsley winger Luke Thomas. Photo: Graham Hunt