Chelsea will fight to keep hold of young midfielder Andrey Santos.
The signing of Vasco da Gama is a target for Barcelona.
But transfer expert Fabrizio Romano is reporting: "Chelsea are currently NOT negotiating with any club for Andrey Santos..
"Despite lot of interest from many clubs in Europe, there are no concrete talks or advanced negotiations at this stage.
"(Mauricio) Pochettino wants to see him in pre season. Directors believe he's the future."