Chelsea and Roman Abramovich have been told to elaborate on a statement made on Saturday evening that said he would "give stewardship of the club" to Chelsea's charitable foundation.
The statement caused a serious stir on Saturday night but no one appeared to be aware of what it actually meant.
It was released amid talk that the Chelsea owner could be hit with sanctions due to his long-standing relationship with Russia president Vladimir Putin, who is in the midst of leading an invasion of Ukraine.
