The team said in a statement that Isaac will be re-evaluated in 8-to-10 weeks.
“While this certainly is disappointing news, there was no damage to his ACL, MCL and PCL ligaments,” Magic president of basketball operations Jeff Weltman said. “All signs point to a complete recovery and this should not impact his future growth.”
Isaac was injured in the first quarter of Orlando’s 122-101 victory at Washington on Jan. 1.
The 6-foot-10 Florida State product has started 32 games this season, averaging 12 points, 6.9 rebounds, 1.4 assists, 2.4 blocks and 1.6 steals per game. He’s the only player in the NBA this season averaging at least 2 blocks and 1.5 steals per game.