Chelsea boss Antonio Conte says the club must sign players before any leave.
"Our squad is not big. For this reason I think it's impossible to send on loan one player or to sell one player, if we don't take another player," Conte said.
Chelsea play at Arsenal on Wednesday bidding for a victory to return to second place in the Premier League table, ahead of Manchester United.
Conte said: "I'm very happy to work with these players, I trust these players. I don't see a problem.
"At the same time I understand if some players are not playing with regularity and want to play with regularity."
Conte says his participation on transfers is limited to making suggestions to director Marina Granovskaia, who leads on recruitment.
"My expectations can be a lot, or not," Conte added.
"But the most important thing is my opinion. I try to give my opinion to the club and then the club has to take the best decision for the team.
"I'm only a coach. My main task is to work on the pitch with my players. If the club decide to ask me something about my team, I try to give my opinion."