Benfica coach Bruno Lage is confident they can keep hold of Joao Felix.
The winger is a target for Manchester United and Real Madrid.
But Lage said: "Joao is a talent with a lot of potential, there is a lot of talk about him regarding many things, but I just want to refer to what he does on the pitch and not what he can do outside.
"He is a talent who has his feet firmly on the ground.
"He manages everything that goes on with total calm."