Chelsea boss Mauricio Pochettino has again admitted hopes of buying in January.
Pochttino was speaking after victory at Luton.
He later said: "It is a thing that we are going to discuss with the owner.
"At the moment the most important s to work with our squad and our team. Players need to step up and be part of the squad and be available. From the beginning of the season, we suffer many injuries.
"Personally, I am not thinking of going into the market but it is something we will discuss with the owners and the sporting director."