The United boss said: "I'm very confident about that. It's a game Real play all the time. In the past they've done it with David Beckham, they've done it with Van Nistelrooy, they've done it with my fitness coach last summer - so we're used to it.
"I am more than confident Cristiano will be with us next year. The Glazer family will not be messed about in this situation.
"We want Cristiano to stay for a long, long time. He is on a fantastic contract and quite rightly so - he's the best player in the world."