The second season of Vučinić started exceptionally well, proving to be a vital player at several occasions. His first Serie A goal came during his second appearance against Udinese on 2 September 2012, the end of the year came soon after and his goal tally stood at 4 goals on 14 appearances and 4 assists. On 9 January 2013 Vučinić scored in the 96th minute against A.C. Milan to bring Juventus to the semi-finals of Coppa Italia where they will face Lazio. The new year started very well for the Montenegrin, as he managed to score once again against Udinese.