"There are certainly some things that need to be worked on in central defence, but we were tested here by the performance of some exceptional players who constantly tried to find any tiny space to attack," conceded the former Chelsea boss.
"I had told my defence that Inzaghi is very dangerous, but our match fitness is improving, and that is the most important thing."
Ranieri added: "Our objective is to finish in the top four. We want a place in the Champions League. At the moment the squad is fine as it is and I have not requested any new signings."