The following season, Insigne made his UEFA Champions League debut in 2–1 home win over the previous season's finalists Borussia Dortmund, on 18 September 2013. Insigne marked his debut in the competition with a goal from a free-kick. In the final of the Coppa Italia on 3 May 2014, Insigne scored twice in the first half as his side won 3–1 against Fiorentina.