<page_title> 2017–18 Chelsea F.C. season </page_title> <section_title> EFL Cup </section_title> <table> <cell> 20 September 2017 Third round </cell> <cell> Chelsea </cell> <cell> 5–1 </cell> <cell> Nottingham Forest </cell> </table>
On 20 September, Chelsea hosted Nottingham Forest in the third round of the EFL Cup, defeating the 2017–18 Chelsea F.C. season by 5–1.