Here's every occasion the club have broken their record over the last twenty years, based on estimated fees...
9. 2019 - Callum Robinson
Fee: £7m. Another Republic of Ireland international, Robinson is set to play upfront this season, despite previously featuring as a winger for Preston. Photo: Mike Hewitt
10. 2019 - Lys Mousset
Fee: £10m. Brought in from Bournemouth, the Frenchman will be looking to recapture the ruthless goalscoring form that saw him seal a Premier League move back in 2016. Photo: Nathan Stirk
11. 2019 - Oli McBurnie
Fee: £17m. The Scotland international will be desperate to bring his ruthless goalscoring form to the Premier League, and will be raring to go for his new club. Photo: Stu Forster