We've taken a look (via Transfermarkt data) at how Middlesbrough's five-year transfer net spend compares to every other Championship side, along with each teams most expensive signing over the period. Here's where Boro rank in the intriguing spending league table:
21. Huddersfield Town - -£40m net spend last five seasons
Biggest season net spend: -£45m. Highest transfer fee paid: £17.5m for Terence Kongolo from Monaco in 2018. Photo: Alex Livesey
22. Bournemouth - -£43m net spend last five seasons
Biggest season net spend: -£62m. Highest transfer fee paid: £20m for Nathan Ake from Chelsea in 2017. Photo: MATT DUNHAM
23. Cardiff City - -£51.7m net spend last five seasons
Biggest season net spend: -£46m. Highest transfer fee paid: £11m for Josh Murphy from Norwich City in 2018. Photo: Laurence Griffiths
24. Stoke City - -£86m net spend last five seasons
Biggest season net spend: -£31.4m. Highest transfer fee paid: £17m for Kevin Wimmer from Spurs in 2017. Photo: Gareth Copley