09:00 CET - Good morning and welcome back to our summer-long blog covering every major developing and confirmed signing across Europe's biggest leagues.
As always, however, clubs have been busy getting business done before the window officially opens. The headline deal to have already been completed this time around comes from Barcelona signing Newcastle United winger Anthony Gordon on a permanent deal until 2031 for a reported €80m fee.
And just yesterday evening, Liverpool confirmed centre-back Ibrahima Konate would be leaving the club as a free agent after five years at Anfield.