Boston Celtics guard Jabari Bird plead not guilty Wednesday to two new charges stemming from a domestic violence incident involving his girlfriend last September, according to reports.

In September 2018, Bird was arrested on charges of assault and battery, assault and battery with a dangerous weapon, stragulation and kidnapping. On Wednesday, prosecutors added threats and witness intimidation charges, alleging that Bird told his girlfriend he was going to murder her during the altercation. Court documents show that he told his girlfriend “tell anyone about this, I don’t care where you are I’ll find you and kill you.”

Bird had previously pleaded not guilty to charges of assault and battery on a household member, assault and battery with a dangerous weapon, kidnapping, and strangulation or suffocation.

At the time Bird’s girlfriend, alleged that the 56th overall draft pick, strangled her, a dozen times to the point that she lost consciousness for a period of time. The victim also told police at the time, Bird threw the her against a wall and continued the attack for about four hours, dragging the victim by the ankles away from a door when she tried to leave.

Police say she locked herself in the bathroom, and at one point in the alleged altercation she was hiding under a bed.

Bird’s next scheduled court date is February 13. According to ESPN, the Celtics would have to pay Bird’s guaranteed $1.35 million salary for this season if they were to waive him. By allowing the league to handle the matter, his contract could potentially be voided, depending on how the legal proceedings play out.