Bulls forward Bobby Portis has been suspended eight games after punching teammate and fellow forward Nikola Mirotic, the team announced Wednesday.

Portis will be allowed to practice with the team during his suspension, though he won't be eligible to play again until the team visits the Raptors on Nov. 7.

"I’m very disappointed in what happened. Our locker room is a family," Bulls coach Fred Hoiberg said. "My job is not to let this moment derail us."

Portis and Mirotic were involved in a "serious altercation" at practice on Tuesday that eventually sent Mirotic to the hospital.

The incident allegedly occurred when Portis and Mirotic got into a shoving match during practice that ended with a cheap shot by Portis to the face of the 26-year-old. Mirotic later underwent tests and was diagnosed with a concussion in addition to facial fractures and a broken jaw from the fight.

Mirotic is out indefinitely and could require surgery after signing a two-year contract worth $27 million this offseason to return to the team. He is expected to miss four-to-six weeks, but he'll first need to clear concussion protocol.

The Bulls are scheduled to open their season Thursday in Toronto against the Raptors.