Magic president Jeff Weltman confirmed Monday the team "will not have Jonathan Isaac next season," according to The Associated Press' Tim Reynolds.
Isaac suffered a torn left ACL against the Sacramento Kings on Aug. 2.
The forward missed 31 games earlier this season after suffering ligament damage in his left leg Jan. 1. Weltman has previously insisted the team didn't rush Isaac back from his injury.
Isaac took major strides in his third campaign, averaging 11.9 points and 6.8 rebounds per game. He also recorded impressive averages of 2.3 blocks and 1.6 steals per contest.