Arsenal manager Arsene Wenger says new players will be signed in January but only if the "right opportunity comes up".
The Gunners have again suffered a number of injuries this season but midfielders Aaron Ramsey, Mikel Arteta and Mesut Ozil as well as striker Theo Walcott are all close to making a comeback ahead of the second part of the season.
"There is a need there [to add players] but the right opportunity has to come up," Wenger said.
"To buy [just] to buy is not what we want to do, but if the right opportunity comes up, we will do it.
"If you look at the number of games some players played, and the injuries we have with [Jack] Wilshere, [Aaron] Ramsey and [Mikel] Arteta, we are a bit short at the moment in midfield."
Asked if Yaya Sanogo and Lukas Podolski will leave during the winter transfer window, the Frenchman added: "He’s [Yaya Sanogo is] a player of Arsenal Football Club and I want him to stay.
"Apart from that, what it is to be professional is that as long as you are somewhere, you give your best to justify your wages and your love for the club.
"I hope [that Podolski will stay]. [The] Inter Milan [reports] are not serious. They talk, it is only talk.
"Offensively we have many options [when everyone is fit], too many to keep everyone involved with the right number of games, that is for sure.
"I don’t really doubt [loan deals] in some positions where players need experience. That’s not the case for Podolski but players who need practice because they’re at a very young age like Sanogo, it is not impossible."