Chelsea 'enigma' Marina Granovskaia is someone who prefers to operate away from the cameras but the 'uncompromising' Blues chief has been detailed at length by insiders by French newspaper L'Equipe.
The extensive profile on Chelsea's managing director paints a picture of an intellectual who has the steel to take on agents, including Mino Raiola.
Raiola, one of the most powerful football agents in the world and the representative for Chelsea striker Romelu Lukaku, is reported to have 'clashed' with Granovskaia.
The Russian executive, who assumed her director role at Chelsea in 2013, is, unnamed agents said in the profile, someone who often works 'at impossible times' and likes to conduct her business via messaging platform WhatsApp.