Chelsea are delaying a decision over whether to sell Levi Colwill.
CBS says the 19-year-old is 'not trying to force' a move away from Stamford Bridge, but wants clarity over his future at the club.
Everton, Southampton and Leicester are said to be 'interested' in the player, but Chelsea will not be prepared to sanction a move until they bring in defensive reinforcements.
The London club are currently linked with Seville defender Jules Kounde.
Colwill spent last season on-loan with Huddersfield.