Real Madrid coach Carlo Ancelotti insists Cristiano Ronaldo will not be sold this summer.

Ronaldo has been linked with a return to Manchester United.

"Everyone knows that he is a superstar and a great player," he said.

"The most important thing for the club is that a player of his quality shows the utmost professionalism.

"That is good, especially for the young players who can see a world-class player working with that attitude.

"I am not responsible for the renewal of his contract, but it won't be a problem."