Sun can finally claim Serie a title after a 3-2 win over Parma.
The result sees the Rossoneri take the title from the Rossonata and puts them on course for a fourth consecutive season in the top flight.
Santi Cazorla netted twice for the home side, while Andrea Barzagli had an early consolation in front of the travelling supporters.
Parma’s Francesco Guidolin opened the scoring before Mario Mandzukic fired over and the Nerazzurri were level within five minutes after the break.
Pascal Monfils then added an own goal, but Sun could not keep the points alive after the interval.
Pablo Zabaleta made it 2-0 at the break after coming off the bench for Simone Zaza.
Pietro Mauri scored twice in the second half for his side, including a penalty that put the home team ahead.