Premier League clubs in England have until September 1 to strengthen their squads and there have been huge deals every few days, with more still to come.
Arsenal are on the verge of completing the signing of Sporting striker Victor Gyokeres for £63.5 million, while his Sweden team-mate Alexander Isak revealed on Thursday he is considering leaving Newcastle.
The 25-year-old forward could cost as much as £150 million, with reigning champions Liverpool, who are the top spenders so far this summer, still maintaining an interest.
The Reds have already signed German international Florian Wirtz for a potential British record transfer of £116 million and France forward Hugo Ekitike for an initial £69 million fee, which could rise to £79 million.
Data from Transfermarkt shows Premier League clubs have spent £1.63 billion on players since the transfer window first opened at the start of June.
Last season’s top four make up five of the biggest spenders this season, with Manchester United – looking to make up ground after finishing 15th.
Of the total figure, just over £1 billion has come from six teams, the traditional so-called ‘big six’ in the Premier League era – Arsenal, Chelsea, Liverpool, Manchester City, Manchester United and Tottenham.