Antonio Conte admits he is unsure whether Branislav Ivanovic will stay at Chelsea, according to the Sun.
Ivanovic seems set to join Zenit St Petersburg on a two-and-a-half year contract worth around £80,000 a week.
The Serbian defender has dropped out of support at Stamford Bridge since Conte presented a 3-4-3 formation.
He has also been linked to Premier League sides Everton, Leicester and West Ham.
When asked what the chances of Ivanovic, who signed from Lokomotiv Moscow in 2008, staying at Chelsea past January are, Conte said: “I don’t know.