The biggest heavyweight trilogy bout in UFC history goes down this Saturday night when UFC Heavyweight Champion Cain Velasquez and Former UFC Champion Junior dos Santos climb in the octagon for the third time. The UFC has released the third installment of the series and you can watch it below. UFC 166: Velasquez Vs Dos Santos III takes place on October 19 at the Toyota Center in Houston, Texas. In the co main event, Strikeforce Heavyweight Grand Prix winner Daniel Cormier will be taking on Roy Nelson.
Courtesy of the UFC: