The Dutch strike-ace told AS: "Wesley is a boy with a tremendous quality. The quality is not up top, it is in the feet. He has a great mentality and is very young. For Madrid, Sneijder is a great signing, a luxury."
Asked about his influence on his young teammate, Van Nistelrooy added: "Where I can help, I am going to help, clearly. It is better for the team.
"To be a leader in Madrid is not my objective. I believe that we have great experience with Roller (Raul) and Guti. I am going to play, to train, the young players here are very good. We are going to try to continue our great start."