Celtics player Jabari Bird is arrested after alleged ‘domestic incident’

Boston Celtics Jabari Bird hauls in a defensive rebound against the Brooklyn Nets during first quarter action at TD Garden in April.Matthew J. Lee/Globe Staff

Celtics shooting guard Jabari Bird was arrested in Brighton on Friday after a “domestic incident” in which he allegedly assaulted, choked, and kidnapped a person, according to Boston police.

Bird was being “guarded by the Boston police at a local hospital” on Saturday morning “for an evaluation.”

He is tentatively expected to appear in Brighton Municipal Court on Monday, where he will face arraignment on charges of domestic assault and battery, strangulation, and kidnapping, Boston police said.

The victim was taken to a separate local hospital “for treatment with injuries sustained,” said Sergeant John Boyle, a Boston police spokesman.

Boston police declined to comment further, declining to disclose the gender of the person who was attacked or specify the location in Brighton where the assault occurred or what time it happened.

In limiting its public comments on the case, the department cited a state law that prohibits police officers from disclosing information about allegations of domestic abuse.

A spokesman for the Suffolk County district attorney’s office said he had no further information about the case.

Celtics officials said they are investigating the incident and are “taking it very seriously.”

“We are actively gathering information and will reserve further comment at this time,” they wrote in a statement on Saturday.

Celtics president of basketball operations Danny Ainge declined to comment when reached by cellphone on Saturday morning, saying only that the team was aware of the situation and gathering further details. Bird’s agent, Aaron Goodwin, could not be reached by cellphone on Saturday morning and did not immediately respond to a text message.

The Celtics selected Bird with the 56th overall pick of the 2017 draft and last season he signed a one-year, two-way contract and spent most of the season with the team’s G-League affiliate, the Maine Red Claws. He averaged 19.3 points per game in Maine, and averaged 3 points and 1.5 rebounds over 13 games with the Celtics. As a two-way player, Bird was not eligible to compete in the playoffs for the Celtics, but he spent much of the postseason with the team anyway.

“I’d always try to envision myself how I fit out there,” Bird said in July. “That’s the main thing. You’re sitting on the bench and watching, I’m watching guys at my position, I’m trying to envision, like, what would I do in that situation? How can I impact the game?”

Bird had a strong summer league showing in Las Vegas in July, averaging 16.8 points on 57 percent shooting, and he ultimately secured the team’s final roster spot by signing a two-year, $3 million minimum contract, with the first year fully guaranteed at $1.55 million. The second season is nonguaranteed.

The NBA’s collective bargaining agreement states that a player acknowledges that “his contract may be terminated in accordance with the express provisions” of the joint NBA/NBPA Policy on Domestic Violence, Sexual Assault, and Child Abuse. The CBA states that “in the event of such termination, all obligations of the Team, including obligations to pay Compensation, shall cease, except the obligation of the Team to pay the Player’s earned Compensation (whether Current or Deferred) to the date of termination.”

One league source said Saturday morning that it was unlikely that the Celtics would make any roster decisions regarding Bird on Saturday as they continued to gather information.

The Celtics are scheduled to open training camp on Sept. 25.