Aiden O’Brien was signed, sealed and delivered with less than four hours remaining, becoming the fifth new arrival through the door this month.
With eight players heading in the opposite direction, it’s clearly been a hectic period for all involved at Fratton Park.
So, click through to see how Pompey’s winter window unfolded.
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5. OUT: Alex Bass - Bradford (loan)
One of the more straight forward departures for Pompey. Bass will gain vital experience before returning to fight for the number one shirt in the summer. Makes a lot of sense. Picture: Thomas Gadd Photo: Thomas Gadd
6. OUT: Gassan Ahadme (loan cancelled)
Ahadme ultimately couldn't live up to the bloated expectations after his prolific preseason form. It was hardly a surprise to see him return to Norwich before completing a permanent move to Burton shortly after. Picture: Jason Brown/ProSportsImages Photo: Jason Brown
7. OUT: Miguel Azeez (loan cancelled)
Miguel Azeez's time on the south coast ended prematurely after parent club Arsenal grew tired with his minimal game time. Although his exit opened up a loan space, it has left Pompey short in midfield which may prove costly. Picture: Stephen Flynn/ProSportsImages Photo: Stephen Flynn
8. OUT: Haji Mnoga - Weymouth (loan)
Mnoga desperately needed game time after a nightmare spell for Bromley during the first half of the season. The versatile defender's temporary exit was expected and Cowley will hope he'll become a viable first-team option upon his return. Picture: Jason Brown/ProSportsImages Photo: Jason Brown