Guus Hiddink could return to Chelsea in November if Russia fail to qualify for the 2010 World Cup finals.
The Dutch coach agreed to replaced sacked Luiz Felipe Scolari until the summer after the Russian Football Union allowed him to combine both roles.
Hiddink admits there is a clause in his agreement with Russia that he could leave if he fails to lead the nation to the 2010 finals in South Africa.
“I will focus on Russia after this project but people say, ‘Think about it, stay’,” said Hiddink. “I enjoy it with the Russians but I do have a clause that says we can stop in November if Russia don’t qualify.
“Then, the Russian FA can choose another direction and I would also be free to go.”
Hiddink’s Russia are currently second in World Cup qualifying Group Four having lost one of their three games.
They lie four points behind leaders Germany with a game in hand and face the Azerbaijan and Liechtenstein at the end of this month.