Guus Hiddink has revealed he has acted as an adviser to Chelsea since his spell as caretaker-manager two years ago, as he continues to be linked with a possible return to Stamford Bridge.

The Dutchman took over as Blues boss in February 2009 following the sacking of Luiz Felipe Scolari, and guided them to the FA Cup, combining his role in west London with his duties as Russia coach.

Hiddink was highly popular at the club and with Carlo Ancelotti's future as manager uncertain, the man currently in charge of Turkey has been one of a number of names linked with Chelsea.

Since I left two years ago I've been advising the club on things concerning the squad. Sometimes I become a sounding board.
Guus Hiddink on his work for Chelsea

The 64-year-old has also been offered a seat on the board at Ajax while being linked with an advisory role at PSV.

He wrote in his column in De Telegraaf: "It works well with Chelsea. Since I left two years ago I've been advising the club on things concerning the squad. Sometimes I become a sounding board.

"It costs me very little time and I can combine it well with my position with Turkey. There is no conflict at all."

Hiddink, though, is seriously considering the role with the Amsterdam giants after being approached by Johan Cruyff, adding: "He asked me before to work with Ajax to sit on the board.

"In itself it seems to me a great challenge but I am worried about the practicalities, although it might be less complex than a role of adviser."