Chelsea manager Antonio Conte has again confirmed that he is working "very hard" to add new players to his squad.
The Blues are expected to lose winger Juan Cuadrado who is desperate to make a return to Juventus in the Serie A.
And they need to sign at least one player at the back to add depth to the Italian's defensive department.
"There isn't a specific number," Conte told Sky Sports.
"The club and I are working very hard every day to find the right solution in transfer market because we all know that this transfer market is very crazy.
"I am very pleased to work with the players I have because the attitude and work-rate I see every day is fantastic.
"But we are working together to find the right solution to improve this squad.
"I think we can improve a lot but we are improving. Today we decided to win the game. I repeat, I am pleased but we must continue about this way."