Petr Cech is the latest member of staff to leave Chelsea after deciding to vacate his role as technical and performance advisor.
Former Chelsea goalkeeper Cech will follow the recent departures of chairman Bruce Buck and director Marina Granovskaia following the arrival of new owners at the club.
Buck will step down at the end of the month, while Granovskaia will remain in an advisory capacity through the transfer window.
And Cech, who spent 11 seasons as a player at Stamford Bridge, will step down at the end of June.
The 40-year-old had been in the role since 2019 after returning from a spell at Arsenal.
“It has been a huge privilege to perform this role at Chelsea for the past three years,” Cech said in a statement.
“With the club under new ownership, I feel now is the right time for me to step aside.
“I am pleased that the club is now in an excellent position with the new owners. And I am confident of its future success both on and off the pitch.”
Cech will leave his role on June 30 and Todd Boehly, chairman and co-controlling owner, said: “Petr is an important member of the Chelsea family.
“We understand his decision to step away. And thank him for his contributions as an advisor and his commitment to the club and to our community.
“We wish him the best.”
Boehly looking for new sporting director
Boehly has taken on sporting director duties until a full-time replacement is appointed.
The American is understood to have taken a lead role in Romelu Lukaku’s loan back to Inter Milan.
Boehly is though looking to appoint an experienced sporting director with Sky Sports claiming “Chelsea are expected to engage Michael Edwards”.
Boehly has previously referenced Liverpool as a “great model” for success. And Edwards was at the hub of a number of deals at Liverpool, which worked out very well.
One report has claimed that Boehly has already made an offer to Edwards. With CaughtOffside saying he has knocked back the interest.
Edwards is understood to have been approached by Real Madrid and Paris Saint-Germain since his departure was made public in November.