Azpilicueta has served Chelsea since the summer of 2012. He has won many major titles during his time at Stamford Bridge. The Spanish star currently serves as the captain of Chelsea Football Club. However, his contract will expire by the end of this season. Chelsea officials should quickly offer him a new deal. This is because he is one of the most experienced players in the Chelsea squad.
2. Antonio Rudiger
Rudiger has been in tremendous form since he joined Chelsea under the management of Antonio Conte. He is regarded as one of the best central defenders in English football. However, his contract will expire by the end of this season.
3. Andreas Christensen
Thomas Tuchel has helped Andreas Christensen to become one of the most respected central defenders in the English Premier League. It is important to point out that Andreas Christensen graduated from the Chelsea academy in 2013. He signed a new contract some years ago. However, his current deal will expire by the end of the current campaign.
4. Thiago Silva
The Brazilian international has represented many top clubs in Europe. He played for AC Milan before he secured a transfer to PSG in 2012. Thiago Silva joined Chelsea under the management of Frank Lampard. He won the UEFA Champions League title in May. However, his current deal is set to expire by the end of this season.