Khabib Nurmagomedov
Nurmagomedov was one of the most intimidating MMA fighters of his era. The former UFC lightweight champion retired with an undefeated 29-0 record after beating some big names. He famously had a toxic rivalry with Conor McGregor but beat the Irishman when they finally fought. However, that wasn’t the end of the story because he went crazy.
‘The Eagle’ reacted badly to one of McGregor’s teammates, Dillon Danis. He jumped off the cage and attacked ‘The Notorious’s’ corner as a brawl broke out. It was one of the darkest days in UFC history because it played out in front of the world. Nonetheless, Khabib’s moment of bad sportsmanship enhanced his legacy (via MMA Fighting).