The estimated net spend of Preston North End, Wigan Athletic and Derby County - compared to Championship rivals over the last FIVE seasons

We're less than a few weeks away from the opening of the 2020 January transfer window as Championship clubs are handed one last chance to strengthen their squads ahead of the pivotal season run-in.

Over the last five seasons (including the 2019 summer transfer market), we look at each of the 24 second-tier clubs' estimated net spend to give us a rough idea of how individual clubs could approach the upcoming market. Click and scroll through the pages. Figures are taken from TransferMarkt...