Cesc Fabregas is working on contingency plans to find a new club in case Chelsea decide not to offer him a contract extension before his deal runs out at the end of the season.
The signing of Mateo Kovacic and Jorginho, as well as increased game time for Ross Barkley, present a fresh challenge this season for Fabregas, who is trying out a new position under Sarri.
Fabregas remains keen to fight for a spot at Chelsea, but may struggle to retain his salary as the club’s second highest paid player, behind Eden Hazard.
The 31-year-old joined Chelsea in 2014 from Barcelona after already making a name for himself in the Premier League with Arsenal.
Cahill has already spoken of his discontent over a lack of game time so far under Sarri and could follow Fabregas out, with both Chelsea and their manager keen to reduce the size of the club’s playing staff over the next year.