At Mariano Diaz's presentation, Perez was positive about their summer work.
"We had an exceptional squad already and we took advantage of this time to reinforce various areas," he said to reporters.
"The best goalkeeper of the World Cup, Courtois, has arrived, a great defender in Odriozola, a goalkeeper with an extraordinary future (Lunin), one of the great rising stars of Brazilian football in Vinicius as well as Valverde and Reguilon from the academy.
"Now we can add Mariano, who has goal scoring in his DNA."
The president also justified the policy of signings.
"We know that the road is the path traced by our president Santiago Bernabeu," he continued. "The best players in the world, the best in Spain and the best from our academy.
"We will remain loyal to our history."