Barcelona and Real Madrid could reportedly go head to head for the signature of Vitoria de Guimaraes forward Herculano Nabian during this summer's transfer window.
The 16-year-old, who has scored four times in nine appearances for Portugal at Under-17 level, will see his current deal with Vitoria expire at the end of next season.
The striker is yet to represent his team's senior side but has allegedly scored 43 times at youth level over the last two seasons, seemingly leading to a host of interest.
According to Mundo Deportivo, both Barca and Madrid have been alerted to Nabian's progress by their scouts and could attempt to sign him ahead of the 2020-21 campaign.
The report claims that the Clasico rivals both view the Portuguese as a player capable of becoming a target man for the first team in the future.