Which of Jamill Kelly's students ranks as the sixth best pound-for-pound fighter in the UFC? 
Jamill Kelly:  In 2015, he became a guest wrestling coach for Daniel Cormier, Luke Rockhold and Cain Velasquez, all from the American Kickboxing Academy. Daniel Cormier:  He is the current UFC Light Heavyweight Champion, and is ranked as the sixth best pound-for-pound fighter in the UFC.
Daniel Cormier