Dallas Mavericks assistant coach Darrell Armstrong was arrested in the early hours of Saturday and charged with aggravated assault on his girlfriend, police said. 

Dallas police officers were called to the 1000 block of Ross Ave. in downtown Dallas around 3:45 a.m., where an investigation found 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 affidavit for Armstrong, obtained by FOX 4 Dallas, said the incident started due to his girlfriend questioning him about a text from another woman. 

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

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

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"'I’m going to shoot you,'" the victim said, reportedly quoting what Armstrong allegedly said to her as he loaded the weapon.

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

"The Dallas Mavericks are aware of an incident involving a member of our staff and are gathering all relevant information surrounding the incident," the statement reads, per FOX 4 Dallas. "We take this matter seriously. The employee has been placed on administrative suspension pending the outcome of legal proceedings. 

"This matter is currently under review by the appropriate legal authorities. Due to this fact, we will allow the legal process to run its course and we will refrain from further comment while proceedings are ongoing."

Armstrong has been an assistant coach with the Mavericks since 2009, being a part of the 2011 NBA-champion squad along the way. 

He is a member of the Orlando Magic Hall of Fame, having spent nine of his 14 NBA seasons with the franchise. Armstrong initially played overseas from 1991-94 before the Magic gave him a shot during the 1994-95 season. 

Armstrong went on to win the 1998-99 Most Improved Player Award and Sixth Man of the Year Award after averaging 13.8 points, 6.7 assists and 3.6 rebounds mostly off the bench over 50 games. 

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

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Mac McClung forged his own personal dynasty during NBA All-Star Weekend.

The guard, who has only played in one game for the Orlando Magic during the regular season, took San Francisco by storm on Saturday and won his third consecutive NBA Slam Dunk Contest. It’s the first time any NBA player has won the event three times in a row.

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The G League star had four perfect dunks, each scoring a 50. McClung dunked over a car and over 6-foot-11 Cleveland Cavaliers All-Star Evan Mobley. He defeated San Antonio Spurs guard Stephon Castle to maintain his championship.

"It kind of feels like a blur," he said. "It’s something I love doing. That’s where my creativity comes from. I genuinely love this contest and I love to dunk."

McClung, who plays for the Osceola Magic in the G League, is the second dunker to win the contest three times. Nate Robinson won in 2006 and then again in 2009 and 2010.

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"I think the contest is a beautiful thing," McClung said. "I know people probably want bigger stars in it and I would love to see that. I think it’s important for the people in it to want to do it.... This contest is a special thing. We all love it."

McClung’s performance sparked reactions from Memphis Grizzlies star Ja Morant and Milwaukee Bucks star Giannis Antetokounmpo.

"mac might make me decide to dunk," Morant wrote on X.

"If you do it. I’ll do it with you," Antetokounmpo added.

McClung only has five NBA games under his belt. He’s played for the Philadelphia 76ers, Chicago Bulls and Los Angeles Lakers in addition to the Magic.

He said he prepared for the contest for nearly nine months and isn’t sure if he’ll go for a fourth title.

Matas Buzelis, of the Bulls, and Andre Jackson, of the Bucks, were eliminated in the first round.

The Associated Press contributed to this report.

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