Ancelotti was in charge at AC Milan when the Brazilian was at the San Siro and fresh reports have claimed that the Chelsea boss could try and bring him to Stamford Bridge as doubts surround his future.
Reports have claimed that Kaka could leave Real after just one season with German ace Mesut Ozil being lined up as his replacement. However Ancelotti says whatever happens Kaka will not be signing for Chelsea.
"Kaka cannot come to Chelsea," Ancelotti revealed. "He was once a player of mine and has done so much for Milan, but now he belongs to Real Madrid and he will decide about his future along with his current club.
"Certainly neither I nor Chelsea will do it (decide his future)."