Atletico Madrid legend Paulo Futre admits he's a fan of Real Madrid attacker Vinicius Jr.
Ahead of Sunday's derby, Futre says Vini Jr is Real's most dangerous player.
He told Marca: "Of Real Madrid, the most decisive player will be Vinicius; he is a very dangerous player, who unbalances and who can win a game by himself.
"He is a phenomenon. If he has the day, he is unstoppable."
On the match officials, Futre also stated: "Hopefully it will be a great game and there won't be any mistakes for or against any team. The most important thing is sportsmanship and that it be a good game."