The Mirror says former England under-21 left back Bertrand is negotiating an extension to his current deal but wants guarantees of first-team football next season.
"If they cannot offer me that I guess I will have to look elsewhere.
"I have played more than 100 league games now and for the under-21s so you would think at most clubs you would get a chance in the first team.
"That is obviously not the case at Chelsea. There are a few important decisions that need to be made.'