The Turkish Football Federation are becoming increasingly agitated over Chelsea's interest in coach Guus Hiddink.
They have threatened to report Chelsea to FIFA if they push ahead with any chase of 64-year-old Hiddink.
"Chelsea have a record of signing players while under contract," Turkish football president Mahmut Ozgener said.
"If the same thing happens with Hiddink, we will make a file of the payments we made to Hiddink and we will go to FIFA."
Ozegener also revealed that he was told that Hiddink informed the Turkey players that he would be leaving.
"After the game with Belgium (on June 3) I went into the dressing room and asked Hiddink what he would do. He replied that he would go to watch the Turkey B team and then fly to South Korea for a charity match," he said.
"Afterwards, I learned he had told the players different things. You cannot come to Turkey and just leave when you want."