Dalla’s Maverick’s assistant coach Darrell Armstrong was arrested in the early hours of Saturday and indicted for worsening assault on his girlfriend, police say.

Dallas police officers were called to the 1000 block Ross Ave. In the center of Dallas around 7 p.m. 03.45, when a study found that Armstrong and his girlfriend had been in an argument.

At one point, Armstrong hit her with a gun and threatened to shoot her, according to police. An arrest warrant declaration on Armstrong, obtained by Fox 4 Dallas, said the incident started because of his girlfriend who questioned him about a text from another woman.

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The victim allegedly told police Armstrong had been drinking that night and demanding that she give him his keys to their apartment. She then claimed that Armstrong was on the phone with another person when he picked up a gun and hit her on the side of her face.

Authorities said they saw a mark on the woman’s cheek under her left eye.

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“‘I want to shoot you,'” the victim said, quoting what Armstrong allegedly said to her as he loaded weapons.

Mavericks released a statement on Sunday afternoon about Armstrong’s arrest.

“Dallas Mavericks are aware of an incident involving a member of our staff and gathering all relevant information about the incident,” Fox 4 Dallas says. “We take this case seriously. The employee has been put on administrative suspension pending the outcome of litigation.

Orlando Magic Player Darrell Armstrong is introduced to Orlando Magic Hall of Fame by CEO Alex Martins during the first half of the Amway Center. (Kim Klement-usa Today Sports)

“This case is currently under review of the relevant legal authorities. Because of this fact, we will give the legal process the opportunity to run its course and we refrain from further comments while the procedure is ongoing.”

Armstrong has been an assistant coach at Mavericks since 2009, being part of the 2011 NBA champion troop along the way.

He is a member of Orlando Magic Hall of Fame after using nine of his 14 NBA seasons with the franchise. Armstrong originally played abroad from 1991-94, before the magic gave him a shot in the 1994-95 season.

Armstrong continued to win 1998-99 Most Impriced Player Award and Sixth Man of the Year Award after an average of 13.8 points, 6.7 assists and 3.6 rebounds mostly from the bench over 50 games.

Darrell Armstrong (Dallas Police Department)

Armstrong also played for Mavericks, New Orleans Hornets, Indiana Pacers and New Jersey Nets during his career, which ended in 2008.