 Complete the following phrase:  Matri began the following season by winning the 2012 Supercoppa Italiana over Napoli. He would go on to make his European debut that season, also scoring his first ever UEFA Champions League goal in a 30 away win over Celtic in the round of 16; he scored another goal in the competition as Juventus reached the quarter-finals, only to be eliminated by eventual champions Bayern Munich. Matri finished his third season with the club by winning his second consecutive 