Juventus beat AC Milan 2-1 in the quarterfinals of the Coppa Italia on Wednesday.
Milan took the lead when Stephan El Shaarawy found the back of the net in the 6th minute.
Sebastian Giovinco equalized in the 13th minute for Juventus with a free kick. Then they had to wait until five minutes into the extra time when Vucinic scored on a fast counter-attack.
In the two-leg semifinals later this month, Juventus will face Lazio, which beat Catania 3-0 on Tuesday.
In the other quarterfinals next week, Inter Milan hosts Bologna and Roma visits Fiorentina.
With this win they now advance into the last-four of the competition.