Gennaro Gattuso has been impressed by Krzysztof Piatek's attitude since arriving at AC Milan, comparing the forward to Champions League winner Jon Dahl Tomasson.
Piatek arrived at San Siro last week, joining from Genoa in a reported €35million move, and made his debut off the bench in a goalless Serie A draw against Napoli on Saturday.
The two sides will go head to head once more in the Coppa Italia on Tuesday, with Piatek potentially in line for his full Rossoneri bow.
Head coach Gattuso would not confirm that Piatek will start ahead of Patrick Cutrone, only repeating that the two would not be paired, but he glowingly drew comparisons with former team-mate Tomasson.