Barcelona and Real Madrid have both enquired about the possibility of signing French left-back Theo Hernandez from Atletico Madrid in the summer, his agent has confirmed.
Garcia Quilon said Theo, who is on a season-long loan at Deportivo Alaves, will make a decision on his future after the La Liga season ends.
The 19-year-old has been ever-present in the Alaves side, making 31 league appearances for the Basque club this season.
He signed a long-term contract with Atletico, which has a release clause of £20m ($26m), before joining Alaves on loan.
"For now he's not close to either of the teams [Real or Barça]," Quilon was quoted as saying by Catalan daily Sport.
"Both are really interested but we've not closed anything with them. There are concert offers, but we still haven't chosen. Both have made an offer to the level of his release clause.
"[Theo] will be the person to decide where he wants to go. They pay the clause and it's the player who decided which team he wants to go to."
Theo has also attracted interest from Liverpool, Manchester City, Manchester United, Bayern Munich and French side Marseille.
Sport claims that Barcelona are in pole position to land Theo as the Catalan giants are prepared to offer greater first-team exposure to the full-back than their rivals despite his young age.
In addition, the prospect of a move to Real could be dented by Atletico's reluctance to do business with their biggest rivals.
Last week, Atletico president Enrique Cerezo denied that there were offers on the table for Theo.
"Theo is an Atletico Madrid player and until now, as far as I know, nobody has asked us about him," he was quoted as saying by ESPN.
"We cannot talk about hypothetical things. There is a code, with all clubs. When we want a player, we talk to the club first, and then with the player.
"We have no intention to sell any player, but if another club comes with an offer which could be interesting to a player, they should talk to us."