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...
1. Accrington Stanley
John Coleman has admitted that Stanley 'have got one or two irons in the fire and we will try and enhance the squad'. Accy are proving to be the surprise package so far.
Photo: Daniel Chesterton
2. AFC Wimbledon
Glyn Hodges mah look for find a replacement for ex-Pompey favourite Steve Seddon, who's been recalled by Birmingham. Hodges has said that while there's not a lot of room in the Wombles' budget 'there are one or two players we’re looking into'.Meanwhile, on-loan Brighton forward Ryan Longman is reportedly attracting interest from clubs at a higher level and could be recalled.
Photo: Joe Pepler
The Seasiders had overhauls in the past two transfer windows and Neil Critchley isn't planning 'anything anywhere near the volume of work in those windows'. There might be some movement at Bloomfield Road, although Critchley has said it'll be minimal.
Photo: Lewis Storey
4. Bristol Rovers
Recently-appointed manager Paul Tisdale is reportedly eyeing a new striker in the window. The Gas could lose Erhun Oztumer, however, as he could be recalled to Charlton Athletic.