Ranieri said: "Ulloa is still injured. He is coming back slowly. Today he had a little training session.
"I want him because he is a good player. Of course he would like to play more but I have said from the beginning unhappy players can leave.
"But the team and the club are also important. For this reason I sold Jeffrey Schlupp and Luis Hernandez because there were good offers.
"If somebody wants Leo they will have to pay. They have to pay because he is a good player and that is it."