Real Madrid and Barcelona are reportedly both interested in signing 16-year-old Brazilian starlet Lincoln.
Lincoln burst onto the scene during the recent Under-17 World Cup, scoring in all three of Brazil's group games and helping the team to a third-place finish.
Marca reports that both Madrid and Barca are keeping tabs on the attacker, although Flamengo are understood to have set an asking price of at least €30m (£26.5m) despite his age.
The Clasico rivals have gone head to head for young Brazilian talent before, most notably when Barcelona beat Los Blancos to the signature of Neymar in 2013.
More recently, Madrid secured the signing of another Brazilian teenager Vinicius Junior, who will join the club once he turns 18.