Real Madrid and Atletico are tracking Cruzeiro striker Guilherme.
Brazilian sources say Real had scouts check on Guilherme in action against Atletico-MG on October 19. Atletico chief Jesus Garcia Pitarch has also had the young striker scouted in recent weeks.
Both Madrid clubs will have to move quickly if they want to land Guilherme, who is now subject of a £4 million offer from Dynamo Kiev. The Ukraine giants are willing to cough up the massive fee for just a six-month loan with the view to a permanent deal at the end of this season.