Sunderland sign Netherlands left-back Patrick van Aanholt on a four-year deal from Chelsea for an undisclosed fee.
Chelsea re-sign veteran striker Didier Drogba on a one-year deal after the Ivorian left Galatasaray.
Chelsea boss Jose Mourinho says Didier Drogba "belongs" at the club as he considers re-signing the Galatasaray striker.
Former Chelsea midfielder Frank Lampard joins Major League Soccer side New York City FC on a two-year deal.
Fixtures, Results & Competitions
Paris St-Germain must close some of their stadium for a match after their fans' behaviour to disabled Chelsea supporters.
Nigeria defender Kenneth Omeruo agrees to return for a second loan spell at Middlesbrough from Chelsea.
Ivory Coast striker Didier Drogba is considering returning to Chelsea on a one-year deal for the coming season.
Chelsea boss Jose Mourinho says his side will not buy anyone else this summer after signing left-back Filipe Luis.
Chelsea sign Atletico Madrid's Brazil international left-back Filipe Luis for £15.8m on a three-year contract.
Chelsea striker Demba Ba passes medical and completes a £4.7m move to 13-time Turkish champions Besiktas.
Chelsea's Spanish midfielder Oriol Romeu signs a new contract to stay with the London club until 2017.
Atletico Madrid striker Diego Costa completes his transfer to Chelsea after signing a five-year deal at Stamford Bridge.
Chelsea announce the signing of 19-year-old Croatian midfielder Mario Pasalic for an undisclosed fee from Hajduk Split.
Burkina Faso international Bertrand Traore is to return on loan to Vitesse Arnhem from Chelsea next season.
Italian Serie A side Roma announce they have signed former Chelsea and England defender Ashley Cole on a two-year deal.
Chelsea midfielder Thorgan Hazard joins German club Borussia Monchengladbach on a season-long loan.
Wycombe midfielder Matt Bloomfield says his testimonial against Chelsea will evoke memories of a highlight of his career.
Middlesbrough head coach Aitor Karanka is confident that Kenneth Omeruo will return to the club on loan from Chelsea.
Ashley Cole and Samuel Eto'o leave Chelsea after their contracts expire, but Mark Schwarzer agrees a new one-year deal.
Chelsea defender Wallace will join Dutch side Vitesse Arnhem on a season-long loan to gain regular first-team football.
Video & Audio
Features & Analysis
From big-money deals to bargain hunting, we take a look at what has happened - and what might yet happen - in the transfer window.
BBC Sport picks out 10 games that tell the story of one of the most compelling Premier League title races ever seen.
BBC Sport on how the season finale will decide Manchester City and Liverpool's title hopes.
Robbie Savage looks at how Jose Mourinho's Chelsea tactics let down his side in the Champions League defeat by Atletico Madrid
A fifth Champions League semi-final loss proves hard to take for Chelsea and their inspirational leader John Terry, writes Ben Smith
How Chelsea boss Jose Mourinho masterminded a "beautiful victory" at Anfield that means the title race is wide open
Chelsea's Fernando Torres can expect a hero's return to Atletico Madrid on Tuesday - and may yet end up back there permanently
Chelsea manager Jose Mourinho will hope his touchline sprint against PSG will not be the only similarity to his 2004 Champions League run
Liverpool are now in pole position for the title after surging to an eighth consecutive league win, writes Phil McNulty
As the most open Premier League title race in history nears its climax, BBC Sport experts give their verdicts on who will prevail