Richie Incognito and Jonathan Martin
This is one of the worst stories on this list because Incognito was horrible to Martin. The offensive lineman bullied his former Miami teammate as he abused his position in the team. He made Martin’s life miserable as he relentlessly went after him. Martin never provoked anything and didn’t deserve this treatment.

Incognito made rude sexual slurs as he questioned Martin’s sexuality. He also made lewd comments about Martin’s sister as he crossed another line. In the end, Martin quit the Dolphins and only more season in the NFL. The Dolphins disciplined Incognito but he didn’t care about it (via Sportskeeda).