"Barca want to sell Dani Alves and are looking for a replacement for him, who would be Douglas," Aidar told Sport.
"The sale isn't completed because we still have to talk and the economics involved in the operation are the Traffic group [who own 40 per cent of Douglas' rights], Juan Figger [an intermediary], Sao Paolo and Barca.
"Two months ago our partner Figger asked if we would sell the player to Barca. We said we were willing to negotiate.
"He's doing everything and things are progressing well. We haven't spoken directly to Barca but we are aware of their interest, so are the agents, Traffic. I guess they have already spoken to the player."
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