13. Ali Abdelaziz
One of MMA’s most famous managers, Abdelaziz is very successful. The Afghan is the founder of Dominance MMA and represents many champions. His decorated stable include the likes of Khabib Nurmagamedov, Kamaru Usman, and Henry Cejudo. While Abdelaziz’s personal success is remarkable, he’s also one of MMA’s shadiest figures. First of all, he maintains a relationship with Chechen dictator Ramzan Kadyrov.

Kadyrov’s regime is one of the most brutal in Europe. Meanwhile, in MMA, Abdelaziz has become involved in violent scuffles. He allegedly punched his fellow manager, Malki Kawa, and put a pregnant woman in danger. Furthermore, he uses his fighters to enhance his own fame. It’s cringeworthy because he often speaks for them and tweets from their accounts. But overall, there is just no doubting his effectiveness as a manager.