The striker only scored five goals throughout all of last season with Inter Milan, but on his first start for the Rossoneri netted a treble.
"I think this ball will mean a lot to me," he told Sky Sport Italia while cradling it after the 3-1 win.
"I was coming off some difficult months and now feel great joy. It's a sign for me and those who always believed in me.
"This was a difficult match and we won, so it couldn't have gone any better. It is a great emotion to score in my first start after so many months on the bench."