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:
1. Brentford - +£94m net spend last five seasons
Biggest season net spend: +£5.6m. Highest transfer fee paid: £5.8m for Bryan Mbeumo from Troyes in 2019. Photo: Warren Little
2. Norwich City - +£78m net spend last five seasons
Biggest season net spend: -£5.95m. Highest transfer fee paid: £8m for Alex Pritchard from Spurs in 2016. Photo: Nathan Stirk
3. Swansea City - +£84m net spend last five seasons
Biggest season net spend: -£7.9m. Highest transfer fee paid: £18m for Andre Ayew from West Ham United in 2018. Photo: Stu Forster
4. Bristol City - +£27.7m net spend last five seasons
Biggest season net spend: -£9.1m. Highest transfer fee paid: £8m for Tom Kalas from Chelsea in 2019. Photo: Justin Setterfield