River Plate prospect Exequiel Palacios is being watched by Barcelona.
Sport says Barca are making initial enquiries after the 20 year-old, who is now a first-choice in River's XI.
Palacios' agent Renato Corsi has confirmed Barca aren't alone in their interest in his client.
"I have been called by millions of intermediaries but there is nothing concrete, we'll sit down with River because they want to raise the clause to €30 million, we've had a single meeting and we did not decide anything," he said.