Atalanta put on a masterclass at San Siro to dominate leaders Milan 3-0, but the Rossoneri were still crowned Winter Champions.
La Dea are simply unplayable on their day and the number of players missing in Stefano Pioli’s side, as well as an odd decision to use Soualiho Meite as a trequartista, put the game firmly in the hands of the visitors.
Cristian Romero got in front of Pierre Kalulu to meet the Robin Gosens cross with a strange diving header to surprise Gianluigi Donnarumma.
Zlatan Ibrahimovic wasted a big chance to equalise, but when Franck Kessie clumsily raised his arm and caught Josip Ilicic in the face, it had to be a penalty, converted by the Slovenian.
Ilicic and Duvan Zapata came close before the Colombian ran onto the Romero slide-rule pass for 3-0.