Birmingham's home attendance record was set at the fifth-round FA Cup tie against Everton on 11 February 1939. It is variously recorded as 66,844 or 67,341. The highest transfer fee received for a Birmingham player is, according to the "Sky Sports" website, "a guaranteed £25 million up front" received in July 2020 from Borussia Dortmund for Jude Bellingham, which made him the most expensive 17-year-old in world football; the deal also included add-ons "worth 'several millions more'". The highest fee paid is £6.3m for Croatian midfielder Ivan Šunjić, who joined from Dinamo Zagreb in July 2019.