Lucas Silva's presentation in the Santiago Bernabéu's presidential box
"You have worked tirelessly to join the best team in the world", said Florentino Pérez.
“This is a dream, it's a new chapter for me and I will adapt quickly in order to be ready as soon as possible”, he said.
Isco joined the group as the Whites began preparing for the clash against Real Sociedad.
He posed in his new shirt after his unveiling in the presidential box.
The Brazilian has signed with the club until 30 June 2020.
The first time he went to a stadium he posed with his brother and his father, who was wearing the Real Madrid shirt.
The new Whites midfielder underwent tests at the Sanitas La Moraleja hospital.
The 21-year-old, chosen as the Brazilian League's best defensive midfielder, joins the Whites from Cruzeiro.
“It's an unforgettable moment in my career. I never imagined I would win the Ballon d'Or three times. I hope not to stop here", he declared.