Every League One squad size and the amount of transfer work they need to do this summer - including Portsmouth, Derby, Ipswich, Barnsley, Sheffield Wednesday

The summer transfer window is almost upon us.

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.

13. Cambridge United

Squad size: 21 Summer departures: Wes Hoolahan, Kai McKenzie-Lyle, Tom Dickens, Jack Iredale. Photo: Stu Forster

Photo Sales

14. Lincoln

Squad size: 21 Summer departures: John Marquis, Max Melbourne, Contract talks: Conor McGrandles, Liam Bridcutt,, Brooke Norton-Cuffy (Arsenal), Josh Griffiths (West Brom), Lewis Fiorini (Manchester City), Liam Cullen (Swansea), Morgan Whittaker (Swansea). Picture: Stu Forster/Getty Images Photo: Stu Forster