Key figures including Sean Raggett, Marlon Pack and Tom Lowery are all signed on for next season, while Joe Morrell and Colby Bishop are the Blues’ most prized assets going into the window.
Connor Ogilvie, Josh Oluwayemi and Harry Jewitt-White all had options triggered by the club at the end of the campaign, while Ronan Curtis and Jay Mingi remain in negotiations.
At least 9-10 new faces have been pencilled in to arrive through the doors at Fratton Park in the window in John Mousinho’s maiden summer in charge.
But how much work do Pompey need to do compared to their rivals?
We’ve taken a look at the current squad sizes of each League One club to discover how many players they have under contract following the release of their retained lists.
NOTE: Carlisle and Barnsley are yet to publish their retained list due to involvement in the play-off final.
At least 9-10 new faces have been pencilled in to arrive through the doors at Fratton Park in the window in John Mousinho’s maiden summer in charge.
21. Fleetwood
Current squad size: 22; Players under contract: Drew Baker, Danny Andrew, Barry Baggley, Chris Conn-Clarke, Callum Dolan, Josh Earl, David Harrington, Cian Hayes, Carl Johnston, Jay Lynch, Harvey Macadam, Jack Marriott, Stephen McMullan, Toto Nsiala, Promise Omochere, Phoenix Patterson, Junior Quitirna, Scott Robertson, Shaun Rooney, Jayden Stockley, Josh Vela, Brendan Wiredu. Photo: Pete Norton
22. Oxford United
Current squad size: 23; Players under contract: Simon Eastwood, Ciaron Brown, Steve Seddon, Stephan Negru, Teddy Mfuni, Marcus McGuane, James Henry, Billy Bodin, Josh Johnson, Yanic Wildschut, Josh Murphy, Sam Baldock, Marcus Browne, Tyler Goodrham, Gatlin O’Donkor, Jack Stevens, Elliott Moore, Cameron Brannagan, Oisin Smyth, Ed McGinty, Sam Long, Stuart Findlay, James Golding. Photo: Catherine Ivill
23. Peterborough
Current squad size: 24 (nine available for transfers); Players under contract: Ronnie Edwards, Jack Taylor, Kabongo Tshimanga, David Ajiboye, Joel Randall, Will Blackmore, Harrison Burrows, Manu Fernandes, Ricky-Jade Jones, Hector Kyprianou, Ephron Mason-Clark, Kwame Poku, Charlie O’Connell, Aaron Powell. Available for transfers: Frankie Kent, Josh Knight, Jonson Clarke-Harris, Oliver Norburn, Dan Butler, Jeando Fuchs, Ben Thompson, Joe Tomlinson, Christy Pym. Photo: David Rogers