Juventus will end Massimiliano Allegri’s return season in Turin without a title after being caught by a late penalty ahead of Perisic’s heroics in Rome.
Inter, who are still in contention to retain their Serie A title this season, started on the front foot, taking the lead after six minutes at the Stadio Olimpico as Nicolo Barella fired a superb strike into the top corner.
Juventus responded well with Serbia striker Dusan Vlahovic denied by a superb save from Inter goalkeeper Samir Handanovic in a thrilling first half, before defender Alex Sandro equalized five minutes after the break.
Vlahovic then completed the turnover less than two minutes later to spark wild celebratory scenes among the Juve players, but Hakan Calhanoglu’s deftly converted penalty sent the game into extra time.
Perisic then took center stage, once again pulling his side ahead with another penalty, again converted forcefully, before securing a first Coppa Italia triumph since 2011 for Inter with a powerful arrival in the skylight.
Allegri, who was sent to the stands for protesting a late decision, will become the first Juventus manager since 2011 to finish a season without winning a single trophy as Juve are fourth in Serie A and out of contention at the title.
Additional Reuters reporting.