Injured Knicks star, Kristaps Porzingis, has surgery to repair a torn ACL in his left knee.

The Knicks tweeted today that the surgery was a success.

Porzingis injured his left knee last week, ending his breakout season and forcing him to miss this weekend's all-star game.

The injury is a big loss for the Knicks, as the 7-foot-3 star was their leading scorer.