"He had no prior knowledge of or interaction with the assailants," the team said. "He suffered facial lacerations but will make a full recovery. Sterling is not playing tonight because of his prior knee injury."
The Athletic's Shams Charania and Kelly Iko provided further details about the incident:
"Brown was jumped outside of a club in Miami late Sunday night, hit in the head with a bottle and needed medical attention into Monday, sources tell The Athletic. Multiple sources with knowledge of the incident said it was a serious altercation. Brown was admitted to Jackson Memorial Hospital early Monday, according to multiple sources, and was discharged from the emergency room the same day."
Charania also shared a statement from the NBA: "We are in the process of gathering information and hopeful that Sterling makes a full recovery."
Head coach Stephen Silas commented on the situation during a call with reporters and said Sterling was with the team on its current two-game road trip at the Orlando Magic on Sunday and the Miami Heat on Monday:
Brown has made 51 appearances for the team this season and is averaging 8.2 points and 4.4 rebounds in 24.1 minutes per game.
The 26-year-old has missed Houston's past four contests with left knee soreness.
Brown is in his fourth season in the league after having been selected in the second round of the 2017 NBA draft by the Philadelphia 76ers. Shortly after the draft, Brown was traded to the Milwaukee Bucks and spent his first three seasons in Milwaukee.
In November, Brown reached a $750,000 settlement with the Milwaukee Police Department regarding his January 2018 arrest. He had filed suit in June 2018, saying officers used excessive force when they subdued him with a stun gun.
Under the terms of the settlement, Milwaukee City Attorney Tearman Spencer admitted on behalf of the city that officers had violated Brown's constitutional rights during the course of the arrest.