Chelsea could be reported to FIFA over their interest in Turkey coach Guus Hiddink.
The president of the TFF has threatened to complain to the authorities about Chelsea's tactics.
Mahmut Özgener is quoted in Turkish paper Hurriyet as saying: "Chelsea has a past record for signing players who are under contract, if the same thing happens, we will make a file of the payments we made to Hiddink and we will go to Fifa.
"After the Belgium game I went to the dressing room and asked Hiddink what he will do.
"He replied, 'I will go to Turkey's B team match and then go to South Korea for a charity match.' But after that I learnt he said different things to the players. He should have told me what he told the players."
"You cannot come to Turkey and then leave when you want," Ozgener he added, in a rather sinister fashion.