Both players played for the Flamengo coach in Portugal.
And Fernandes revealed to DAZN Brasil: "He is a person with whom I have a connection, to whom I left congratulations after the victory of the Copa Libertadores.
"Recently, Matic, who was also trained by him at Benfica, sent him a photo of us, and he told Matic to take good care of his boy.
"I was always treated with great affection by the mister. Despite his way of being, always shouting, very active, he is a person who knows how to get the best out of certain players."