​​Chelsea boss Maurizio Sarri has confirmed that defender Gary Cahill is not suited to his style of play, revealing that the former England international can leave the club in the January transfer window.

Cahill has played just 21 minutes of football under Sarri in the Premier League this season with Andreas Christensen being named ahead of him on the bench for their recent league games. The 32-year-old had admitted in September that he will look for a move away from Stamford Bridge if he is continued to be benched.

"I respect him very much because he has won everything with this club, but then I have to do my job. Every match I have to choose. For me it is not [possible] to have him on the bench. Maybe he is the best [of our defenders] in the box, but our defenders may play 100 or 110 balls in a match so I need defenders [to play] very technically," he said as ​quoted by ESPN.

"It is not my decision, it is up to him and the club [whether he stays]. He is in the last year of the contract, he has to decide for a new contract here or another club. For the [players] over 30 the club usually offers only one year of contract. If he has an offer of three years [somewhere else] he can of course choose something. It doesn't depend if I am sentimental or not."

Cahill who moved to Stamford Bridge from Bolton Wanderers in 2011 has made 289 appearances for the Blues, helping them win two league titles, one FA Cup, the 2012 UEFA Champions League and the 2013 Europa League.