Atletico Madrid assistant coach Nelson Vivas has talked up the progress of Rafael Santos Borre.
Los Rojiblancos still own 50 percent of the Colombian forward, who has become a key player at River Plate in the last year.
"He's a very interesting player," Vivas told Libero.
"We've followed his season, like we usually do with all our players.
"We know that he's our asset and that he belongs to the club.
"Other than that, I can't give any more information.
"We'll really consider what he's done.
"He's a very interesting player but I don't know River's intentions."
