Luiz admires Benfica's Brazilian defender Luisao, who looked out for him when he first arrived in Portugal.
He said: "Luisao was a big influence on me. At the beginning in Benfica it was hard for me but he always said that everything is achieved by wanting it.
"That's what I carry with me in my life. Luisao went to two World Cups and became respected as the captain of Benfica. I hope I can achieve such things.
"If one day I become captain of Chelsea I'll be very happy.
"But my dream is to win the World Cup with Brazil.
"And with Chelsea it's to reach the level of the previous years and win titles."