The attorney for Bucks point guard Sterling Brown said he plans to sue the Milwaukee police department after officers used a stun gun on him.

Police are releasing the video from Brown's arrest when he was tased — reportedly while being cooperative — and the mayor of Milwaukee is "concerned."

According to the Journal Sentinel, Mayor Tom Barrett is worried about the backlash after watching a video of Brown being stunned without just cause.

"I'm going to let the release of that speak for itself, but yes, I definitely have concerns after watching that video," Barrett told reporters Monday.

The video is expected to be released Wednesday.

Brown, 22, was questioned Jan. 26 in the early hours of the morning outside a Milwaukee Walgreens over a parking violation. Police used a stun gun on him, but Brown reportedly was cooperative and non-threatening toward authorities, making the use of the stun gun unwarranted.

"This could be bad," a source told the Journal Sentinel of the video. "The player doesn't appear to be provocative at all."

An internal investigation is underway with the officers involved. Brown was not charged with resisting or obstructing an officer.