Felix, 19, became Atleti’s club record signing when he was transferred from Benfica in a €126m deal earlier this month and he was officially presented at his new club on Monday.

“We have to be calm but Joao Félix , probably, in a year's time will see his value doubled or tripled,” Filipe - who played against Felix’s Benfica last season while at Porto - explained in quotes carried by Marca.

“He's a great player, in Portugal people knew he was very advanced for his age. He is very intelligent and fast, I know his running moments very well and he is now on my team. In Portugal he was my rival and I had to fight against him. It was difficult because it has a lot of quality, he is a child that still has a lot to grow and he will give many joys to the Atlético fans.”.