Check out all the latest Chelsea transfer news and gossip from today.
Brazilian defender David Luiz left Chelsea earlier this summer because he found Jose Mourinho 'unbearable' to work with.
That's according to Spanish newspaper El Confidencial - who claim the former Benfica star's £50 million switch to Paris Saint-Germain had an ulterior motive.
The huge money offered by PSG was deemed by many as too good to turn down, for a player whose defensive capabilities have been called into question on numerous occasions in the past.
However, Luiz was incredibly popular in the Stamford Bridge dressing room, and it's not yet clear what impact his departure will have on first-team squad harmony moving forward.
Mourinho welcomed some of his Blues players back for the start of pre-season training this week, as preparations for the new campaign begin to gather pace.
A number of senior stars are still on international duty at the World Cup this summer though, including Luiz's Brazilian compatriots Ramires, Oscar and Willian.
Chelsea transfer gossip:
Chelsea have agreed a £20 million deal to sign Atletico Madrid full-back Filipe Luis as a replacement for Ashley Cole, who joined AS Roma this week after leaving Stamford Bridge. (The Sun)
The Brazil international will join his teammates Diego Costa and Tiago Mendes at the west London outfit this summer, forming part of Jose Mourinho's new-look Blues side for the 2014/15 campaign.
Chelsea's hopes of signing Bayern Munich striker Mario Mandzukic are all but over as the Croatia international edges towards a move to La Liga with Spanish champions Atletico Madrid. (Marca)
The 28-year-old is set to move to the Vicente Calderon in a €20 million deal where he'll be tasked with filling the void left by Chelsea-bound Diego Costa.
Chelsea face competition from Liverpool for the services of Swansea City striker Wilfried Bony, who continues to be linked with a £20 million move away from the Liberty Stadium this summer. (talkSPORT)
The Ivory Coast international enjoyed an impressive debut season in the Premier League, scoring 17 goals in 34 appearances in 2013/14, and as a result has attracted interest from a host of different suitors.