Pompey are once again expecting a busy period of activity, with John Mousinho expecting as many as six new arrivals to come through the door.
The Blues recruitment team will already have a number of potential names in their sights, while being ready for any potential curveballs to present themselves.
In terms of targets, past behaviour is often a fair indication of what can happen in the future.
With that in mind, we’ve looked at past windows and the names who surfaced to see if there’s any potential clues over where Pompey can turn.
Of course, there will be some players linked with Pompey who are lot less credible than others with agents keen to see their clients names out there.
So we’ve assembled a list of names you could well see pop up in the new year, either through being options who fit the bill - or perhaps being those familiar figures perennially touted to arrive at PO4...
9. Griffin Yow
A player Pompey were monitoring in the summer, though the Blues had more pressing priorities they pursued. The American talent is with KVC Westerlo in Belgium and operates down the right flank which Pompey will want to strengthen is Harvey Blair and Franco Umeh aren't deemed ready to be relied on in the new year. | Getty Images
10. Abubakr Barry
Pompey, Leeds and Hull were all credited with interest in the 6ft 3in Gambian midfielder last summer. Still with Austria Vienna and a player you wouldn't be surprised to see in the transfer gossip columns again. | Austria Wien
11. Jamal Lowe
Never any credence in talk of Pompey interest last summer, but that didn't stop the former Fratton favourite's name coming up! So no surprise if something similar happened in the new year, especially given the plight of his current club Sheffield Wednesday. | Getty Images
12. Charlie Savage
It wouldn't be a transfer window without Charlie Savage's name being mentioned! Obviously has a very good agent, because the Reading man's name is always out there, with the midfielder doing well under new boss Leam Richardson. | Getty Images