Boxing star Gervontae Davis is in hot water. Yesterday, a video leaked online which showed him getting physical with his baby's mother at a sporting event.

Here is the video - showing Gervontae manhandling his baby's mother

The altercation occurred at a charity basketball game in Miami. According to online reports, the two got into a heated argument - and Gervontae grabbed the woman and physically removed her from her seat - firmly.

Gervontae responded to the video on his Instagram story. He told fans that the woman he was manhandling is the mother of his child. But the boxer maintains he never hit her and would never hurt her. He did admit, however, to being “aggressive.”

Witnesses told TMZ, the two began yelling at each other and things turned physical -- although it's unclear who put hands on who first. But you can see in the video it's a heated situation -- and the two were both escorted out.

We're told no one has been arrested

But we're told the people behind the event are extremely upset at Davis. We're reaching out to Gervonta's camp for comment ... so far, no word back.

Gervontae "Tank" Davis is one of the best boxers in the world, with a record of 23-0. He also is the WBA (regular) lightweight champion. He is promoted by Floyd Mayweather, who has called him a potential successor and a future household name.

Here is the video - showing Gervontae manhandling his baby's mother