CHICAGO – Before Wednesday’s victory over the Cavaliers, Billy Donovan didn’t have the best of news when it came to his starting point guard.

The news didn’t get any better for Lonzo Ball on Thursday.

Around 12:45 PM, the Bulls announced that the guard will have arthroscopic surgery on his left knee to fix and he’ll be out 6-to-8 weeks. While the team didn’t confirm, it was reported that Ball had suffered a small meniscus tear in his left knee which necessitated the surgery.

Donovan said before Wednesday’s game that a treatment Ball initially used on his knee wasn’t effective and was trying a different one in hopes of alleviating the pain.

Acquired in a “Sign-and-Trade” with the Pelicans this offseason, the fifth-year player has brought consistency to the Bulls’ point guard position that has been lacking for years. In 35 games, Ball is averaging 13 points, 5.4 rebounds, and 5.1 assists per contest for the Bulls this season.