Monza president Silvio Berlusconi was proud of his players after victory over Juventus.
Promoted Monza have now beaten Juve home and away in Serie A this season.
Former AC Milan owner Berlusconi smiled: "It was a good statement, we played well and they tell me it's a historic thing to have beaten Juventus twice in a single championship.
"So, cheers, let's go ahead with our young players, with our desire to play good football and to please the spectators."
Monza now sit in eleventh place on the Serie A table.