Some 50,000 flocked to the stadium to welcome Kaka and rumours in Madrid suggest that the 80,000-seater stadium might well fill to capacity to welcome the Fifa World Player of the Year.
The world record £80 million transfer brings with it an expectation that Ronaldo will begin performing near-miracles from his first game in the famous white shirt. It is an expectation he is confident of meeting.
"I've been used to having pressure for a long time. In this sense, I'm calm," he said in an interview with Spanish newspaper Marca on Saturday. "This price tag isn't something I'm going to think about when I go out on to the pitch, so it's not going to affect me.
"I think that it's a fair figure. If Manchester United and Real Madrid agree this amount then there is nothing more to say. I will show that the money they are paying has been a good decision.
"The great players cost a lot of money and if you want them you have to pay it, I'm happy to be the most expensive player in the world. Real Madrid have paid so much money because they wanted me and have considered it a fair price."
Ronaldo, 24, leaves a team in which he was thoroughly integrated and an environment in which he was largely shielded from media attention. Life on and off the field in Madrid will be very different, and Ronaldo appreciates he has left behind a sense of security in Manchester.
"I know that they are going to demand a lot of me to be successful at the club and I know that I'm going to have much more pressure than at Manchester United because I was there for many years. But it means a new challenge and is going to help me be the best footballer."