Hunter, the team's top perimeter defender, experienced some mild swelling in his right knee prior to Game 1 against the Philadelphia 76ers in their Eastern Conference semifinal series, and he underwent an MRI that revealed a new small tear of the lateral meniscus.
Hunter is scheduled to travel to Los Angeles this weekend and have surgery on Tuesday with Dr. Neal ElAttrache.
Hunter averaged 15.0 points and 4.8 rebounds during the regular season.
Game 3 of the Hawks-Sixers series is Friday in Atlanta. The series is tied 1-1.