The tricky attacker is dreaming of finding the net in Sunday's showpiece at the Maracana and expects a tight encounter between both finalists
The Selecao beat Uruguay 2-1 in the semi-finals to book their ticket for this weekend's showpiece, while the reigning world champions proved to be too strong for Italy after penalties.
"I have always had great admiration for many players. Casillas is one of the greatest keepers in the world – now and always," the 21-year-old told AS.
"I have huge respect and admiration for him. Everyone would love to have him in their side, but on Sunday I hope to have the honour of scoring against him.
"It’s going to be a great game. Everyone is really looking forward to it. It’s a clash between two historic national sides, two teams with a lot of tradition.
"Spain with their star players and Brazil, with their stars. I hope that it’s a match which everyone enjoys and that Brazil end as the winners."
Sunday's encounter is scheduled to kick off at midnight CET.