Bobby Portis vs. Nikola Mirotic
Two guys who would otherwise be a member of the NBA’s D-List (and that might be generous), Bobby Ports and Nikola Mirotic of the Chicago Bulls became headline names in 2017, when the former punched the latter, they got into an altercation at practice after incessant jawing at one another. Unsurprisingly, the feud led to a physical exchange, with Portis punching Mirotic in the face, leaving the latter with a fractured orbital bone and a concussion.
Even after being suspended, Portis initially refused to apologize for the incident, though he did so publicly a bit later. Of course, that meant virtually nothing to Mirotic, who eventually demanded that the Bulls could move on with only Mirotic or Portis, but not both. One season later, Mirotic was traded to the New Orleans Pelicans.