We've taken a look (via Transfermarkt data) at how Sunderland' s five-year transfer net spend compares to every other League One side, along with each teams most lucrative sale or costly signing over the period. Here's where the Black Cats rank in the intriguing spending league table:
1. Fleetwood Town -£150k net spend last five seasons
Biggest season net spend: -£295k. Highest transfer fee paid: £400k for Kyle Dempsey from Huddersfield Town in 2017. Photo: Michael Regan
2. Crewe Alexandra - £0 net spend last five seasons
Biggest season net spend: All loans and free transfers. Highest transfer fee paid: All loans and free transfers. Photo: Gareth Copley
3. Swindon Town - +£50k net spend last five seasons
Biggest season net spend: -£350k. Highest transfer fee received: £900k for Nicky Ajose to Charlton Athletic in 2016. Photo: Harry Trump
4. Shrewsbury Town - +£120k net spend last five seasons
Biggest season net spend: +£120k. Highest transfer fee received: £120k for Bryn Morris to Portsmouth in 2019. Photo: Tony Marshall