Cahill fears his place in Roy Hodgson’s England team for Euro 2016 is under threat and is agitating for a move away from West London during the last few days of the January window.
Chelsea are very reluctant to sell the former Bolton and Aston Villa stopper, who signed a bumper four-year deal just a month ago, worth £100,000 a week until 2019.
They have made it clear they are not going to consider selling him, as he is a valued member of the first-team squad.