Chelsea have confirmed Bruce Buck will step down as the club's manager effective, 30 June 2022.
Buck, who has served as Chairman since 2003, will however continue to support the Club as a Senior Advisor.
During the 18-year period that the Buck was at the helm, the Blues won 18 major trophies (more than any other English club) while Chelsea FC Women won 12 major trophies.
"I am proud to have helped Chelsea realize great success on the pitch and make a positive impact in the community," said Buck.
"Now is the right time to step down and let new ownership build on the strong foundations we have in place. The owners have a compelling vision for Chelsea’s future, and I look forward to helping them achieve it in this new role alongside our incredible staff, players, coaches and supporters.'
The club's new owner, Todd Boehly, thanked the 76-year-old for his role over the years.
"Bruce has led Chelsea Football Club to the highest levels of international and domestic football, while also developing one of the most active social responsibility projects in sport,' said Boehly. "We thank Bruce for his service and his commitment to the Club,"
There are reports too that Marina Granovskaia will leave the club this summer.
Granovskaia is known for her negotiation skills, tieing up a number of deals for the club in recent years.
She might, however, stay a little longer, and could look to see some deals over the line.