Sneijder has thanked former Inter Milan Jose Mourinho for his success this season.
He said: “This season has been the biggest learning experience in my career.
“Having Mourinho as a manager gave me so many vital things you need as a player at the highest level.
“The sort of information Mourinho feeds you, no other manager can give you. He is a fantastic manager. He knows exactly how to manage both on an individual level and for the whole team.
“That is why I am not scared about the semi-final against Uruguay and I was not afraid about Friday against Brazil.
“Mourinho has given me information nobody else could give me this year. That is the power of Mourinho.”
Sneijder insists he has no plans to join Mourinho at Real Madrid this summer.
He said: “Next season I will still be with Inter.
“I will not join Jose at Real. I have already played there and I’m now happy in Milan. But I have enjoyed every day I spent this season with Mourinho.”