The Turkish Football Federation admits it does not know if Guus Hiddink will stay as manager of its national team.
The Dutchman continues to be linked with a return to Chelsea, where he was interim boss in 2009.
After Turkey's 1-1 draw with Belgium on Friday, Hiddink would not be drawn on whether he wanted a repeat of his "beautiful time" at Stamford Bridge.
And the TFF conceded there is "uncertainty everywhere" about the future of their employee.
Chelsea are looking for a replacement for Carlo Ancelotti, sacked after he failed to win a trophy in his second season as manager.
Only two weeks ago, Hiddink's agent said the 64-year-old was committed to his role with Turkey until at least October, despite being linked with the vacancy at Chelsea, where he has retained an advisory role.
He is contracted to Turkey until the end of Euro 2012 but could leave this autumn if they fail to qualify.
After the draw in Brussels, which left Turkey in third place in Euro 2012 qualifying group A behind Germany and Belgium, Hiddink said: "I still have a contract with Turkey, but at my age, when some issues come up, you always have to talk about them.
"My time at Chelsea was a beautiful time. Everybody knows that.
"At my age, most of my story is behind me."
The TFF said Hiddink's comments "create a question mark".
"He always says the same things - he says nothing concrete," said a spokesman. "But you also cannot hear from him 'No, I'm not going anywhere - I will stay in charge of the Turkish national team'."
Hiddink has gone on holiday and TFF president Mahmut Ozgener is also away for the next week, meaning the manager's future may not be resolved immediately.
But Chelsea captain John Terry has admitted he is keen to have Hiddink as his manager - or Mark Hughes, who resigned as Fulham boss on Thursday.
Despite a strong start to last season, when they scored 21 goals and conceded just one in their first five league games, Chelsea finished runners-up in the Premier League, nine points behind Manchester United.
They also lost to United in the Champions League quarter-finals, and missed out on the FA Cup and League Cup.
Hiddink led Chelsea to an FA Cup victory in 2009, but his appointment was only on an interim basis after the dismissal of Luiz Felipe Scolari, and he returned to his main job with Russia's national team at the end of the season.
The Dutchman stepped down from that role after they failed to qualify for the 2010 World Cup, but was recruited by Turkey in February last year.