Manchester United boss Sir Alex Ferguson has no fear fielding Rafael against Real Madrid star Cristiano Ronaldo.
The planning for the Champions League blockbuster is already underway.
Fergie said: "I have watched him every day in training and I know everything he can do.
"Rafa has had a fantastic season. He is quick, aggressive and my favoured option could be him to do a job.
"But there's no point worrying about Ronaldo and forgetting about your own game."