Korver, who finished the game with 12 points and one assist, appeared to roll his ankle beneath the body of diving Cleveland guard Matthew Dellavedova. The extent of his injury or a timetable for his return were not immediately known following Friday's game.
The Hawks won 60 games during the 2014-15 regular season and earned the Eastern Conference's top overall seed, but have gone 8–6 so far in the 2015 playoffs amidst a host of lingering injuries.
Hawks' center Al Horford was also helped off the court after bumping knees with Cavaliers' Iman Shumpert.
Forward DeMarre Carroll suffered a bone bruise on his knee during Game 1 of the series and was listed before the game as questionable.
Carroll, who averaged a team-high 16.2 points per game during the postseason coming in to Game 2, did play Friday, but finished with six points and was clearly not at 100 percent, at times favoring his knee.
Game 3 of the Eastern Conference finals is Sunday in Cleveland.
- Will Green