The team believes both parties are at fault in the incident, but Portis had to be suspended because he threw a punch. He's a good kid, he's a competitive kid.
Portis will be allowed to practice with the team during his suspension, though he won't be eligible to play again until the Bulls visit the Raptors on November 7.
Along with the Portis suspension, Paxson announced that Mirotic would miss the next 4-6 weeks with his post-punch injuries suffered on Tuesday.
ESPN's Adrian Wojnarowski reported that Mirotic stayed on the ground for several minutes following the punch before getting up. Sources told ESPN that strike left Mirotic with a fractured bone, sending him to the hospital.
Joe Cowley of the Chicago Sun-Times reports that animosity between Portis and Mirotic had been building for years and that the two forwards had gotten into a "handful" of shouting and shoving matches in practice since the 2015-16 season.
Mirotic was diagnosed with a concussion in addition to a broken jaw and facial fractures from the alleged fight. He will likely need surgery and is out indefinitely. Not that he didn't have his reasons, as Mirotic was a restricted free agent awaiting a contract from elsewhere or the Bulls.
There was already a dearth of talent on this Bulls roster, but now both Portis and Mirotic are out of commission to start the season after this incident.
Mirotic, 26, averaged 10.6 points and 5.5 rebounds per game last season, and was expected to start for Chicago this season.