In
Christopher Nkunku (£52m, RB Leipzig)
Nicolas Jackson (£32m, Villarreal)
Diego Moreira (free, Benfica)
Angelo Gabriel (£12.8m, Santos)
Lesley Ugochukwu (£23.2m, Rennes)
Axel Disasi (£38.8m, Monaco)
Robert Sanchez (£25m, Brighton & Hove Albion)
Moises Caicedo (£100m, Brighton & Hove Albion)
Romeo Lavia (£58m, Southampton)
Deivid Washington (£13.7m, Santos)
Djordje Petrovic (£13.8, New England Revolution)
Cole Palmer (£40m, Manchester City)
Out
Dujon Sterling (free, Rangers)
Xavier Simons (free, Hull City)
Jayden Wareham (released)
Tiemoue Bakayoko (free, Lorient)
Nathan Baxter (free, Bolton Wanderers)
Juan Castillo (released)
Bryan Fiabema (free, Real Sociedad)
Henry Lawrence (free, Standard Liege)
Sam McClelland (free, St Johnstone)
N'Golo Kante (free, Al-Ittihad)
Kalidou Koulibaly (£19.9m, Al-Hilal)
Mateo Kovacic (£25m, Manchester City)
Edouard Mendy (£16m, Al-Ahli)
Kai Havertz (£65m, Arsenal)
Ruben Loftus-Cheek (£13.8m, AC Milan)
Charlie Webster (loan, Heerenveen)
Mason Mount (£55m, Manchester United)
Cesar Azpilicueta (free, Atletico Madrid)
Baba Rahman (free, PAOK)
David Datro Fofana (loan, Union Berlin)
Dion Rankine (loan, Exeter City)
Christian Pulisic (£17.1m, AC Milan)
Ethan Ampadu (£7m, Leeds United)
Omari Hutchinson (loan, Ipswich Town)
Pierre-Emerick Aubameyang (free, Marseille)
Angelo Gabriel (loan, Strasbourg)
Gabriel Slonina (loan, Eupen)
Kepa Arrizabalaga (loan, Real Madrid)
Cesare Casadei (loan, Leicester City)
Harvey Vale (loan, Bristol Rovers)
Ben Elliott (undisclosed, Reading)
Hakim Ziyech (£3m loan, Galatasaray)
Lewis Hall (loan, Newcastle United)
Andrey Santos (loan, Nottingham Forest)
Tino Anjorin (loan, Portsmouth)
Romelu Lukaku (£8m loan, Roma)
Zak Sturge (loan, Peterborough United)
Mason Burstow (loan, Sunderland)
Callum Hudson-Odoi (£8m, Nottingham Forest)
Bashir Humphreys (loan, Swansea City)
Chelsea total spent to date: £401.3m
Chelsea total received to date: £237.8m
Chelsea net transfer balance: -£163.5m