Rodney Cannon says Bieber snapped when he took a picture of him at an NBA Finals game in Cleveland.
He says the singer started threatening him and demanded he delete the photo.
Cannon says Bieber then punched him various times.
The suit claims the incident happened in front a crowd of people, and that Cannon continues to suffer from "mental and physical pain."
Bieber's manager calls the accusations completely false.
----------
* More local news
* Send us a news tip
* Download the abc7NY app for breaking news alerts