Korver went to New York on Tuesday to get a second opinion from a specialist and it was determined he'll need an operation to repair his ankle. Hawks coach Mike Budenholzer did not say what damage Korver has in his ankle and there is no timetable for his return.
The NBA's best 3-point shooter in the regular season, Korver was injured when he was scrambling for a loose ball and his ankle was rolled on by Cleveland's Matthew Dellavedova.
Korver made 221 3-pointers this season, helping the Hawks win 60 games and get to the conference finals for the first time since 1993-94. Korver made a 3-pointer in 51 straight games this season. He holds the league record with 127 consecutive games.