Ghana star Sulley Muntari was at the San Siro on Saturday to support his former side AC Milan who beat Juventus 1-0.
Manuel Locatelli's scorching strike gave the Rossoneri a 1-0 win over the Bianconeri but but Miralem Pjanic's goal was controversially disallowed.
The win has seen Milan cut Juventus' lead to two points.
Muntari's name pops up any time AC Milan and Juventus face off after he scored a ghost goal in 2012.
He scored a perfect goal with a feeble close range header but the officials failed to award the goal claiming it did not cross the line.
This cost AC Milan the Serie A title.