Cech announced in January he was hanging up his gloves this summer but had kept his options open for a future role in the game.
His final game will be in the Europa League final in eight days’ time when Arsenal face Chelsea in Baku.
It will be the swansong for a glittering career before he rejoins Chelsea as a member of their backroom staff, according to Sky Sports.
Chelsea have not had a sporting director since Michael Emenalo left in 2017.
It is not yet clear what responsibilities Cech will have in the role.