Pompey and their rivals are set to be busy during the weeks ahead as they try to shape their squads for league supremacy next season.
But what are the squad sizes of every League One team going into pre-season?
Thanks to Transfermarkt.com, here’s what we found out.
9. Fleetwood
Squad size: 19 Summer departures: Harrison Biggins, Callum Camps, Kieran O'Hara, Anthony Pilkington; Callum Johnson (Pompey), Dan Butterworth (Blackburn), Josh Harrop (Preston) and Zak Jules (MK Dons). Photo: Sam Fielding
10. Plymouth
Squad size: 19 Released: Ollie Tomlinson; Retired: Luke McCormick; Returning loanees: Ryan Broom (Peterborough United), Romoney Crichlow (Huddersfield Town), Jordan Garrick (Swansea City), Steven Sessegnon (Fulham); Contract offered: Ryan Law. Photo: Pete Norton
11. Bristol Rovers
Squad size: 19 Summer departures: Junior Brown, Leon Clarke, Cameron Hargreaves, Cian Harries, Ollie Hulbert, Ben Liddle, Pablo Martinez, Tom Mehew, Jon Nolan, Brett Pitman, Kieran Phillips, Lucas Tomlinson, Glenn Whelan Photo: Harry Trump
12. Oxford United
Squad size: 20 Summer departures: Sam Winnall, Jamie Hanson, Leon Chambers-Parillon, Michael Elechi. Unconfirmed: Elliott Moore, Billy Bodin, Sam Baldock, Anthony Forde, Sam Long, Jack Stevens, Gavin Whyte, Ciaron Brown (both Cardiff), Herbie Kane (Barnsley), Nathan Holland (West Ham). Photo: Alex Burstow