AC Milan are watching Sao Paulo midfielder Casemiro.
Milan transfers chief Ariedo Braida is in Brazil to pave the way for the mid-season transfer session.
The Rossoneri are eager to get in there early with a deal, as they face stiff competition from Inter and Juventus.
The 19-year-old's price-tag is thought to be around 25m and there are also problems regarding his non-EU status.