The window officially opened in July after the completion of the delayed 2019-2020 Premier League season. Clubs will now be busy tweaking their squads ahead of the new campaign, with the deadline pushed back until October 5.
Arsenal have added Willian and are closing in on the signing of Gabriel Magalhaes, while Chelsea have added Thiago Silva and Ben Chilwell to a squad already boasting new arrivals Timo Werner and Hakim Ziyech.
Manchester United are set to sign Donny van de Beek while working on a deal for Jadon Sancho and – reportedly – Dayot Upamecano, and Tottenham have signed Pierre-Emile Hojbjerg, Joe Hart and Matt Doherty.
Liverpool are biding their time in pursuit of Thiago Alcantara, but the biggest story is that Lionel Messi has requested to leave Barcelona.