Heavy favorites Red Star defeated Vojvodina to win the tournament and become Serbia's first cup winner and later clinched the Meridian SuperLiga title to claim its tenth domestic double.
Vojvodina jumped out to the brighter start, with great attacking play from midfielder Milan Davidov running the show and wing-back Nikola Petković causing problems down the left.
Red Star responded with a Nenad Milijaš free kick that almost crept in and Milan Purović`s close-range header before Koroman broke the deadlock on the hour with a crisp shot from the edge of the penalty box.
Vojvodina were on the back foot in the second half and failed to muster a single shot on target as Davidov faded and talented Montenegrin playmaker Igor Burzanović ran their defence ragged at the other end.
"We couldn't break them down in the first half but our lads responded well after the halftime chat in the dressing room and we dedicate this victory to our fans," said Red Star's delighted coach Boško Djurovski.