Chelsea are reportedly keen to agree new contracts with four members of their first-team squad.
The Blues are currently well stocked for options in all areas of the pitch, putting Thomas Tuchel in a position where he may want to part ways with several squad members in January.
However, according to Goal, club officials are focused on ensuring that they convince four players to extend their stay at Stamford Bridge.
Agreeing a new contract with Trevoh Chalobah is also high on Chelsea's agenda with the academy graduate impressing since being given an opportunity in August.
While the report says that no contract has been formally offered to Mason Mount, the West Londoners want to extend the England international's deal past 2024.