Kamaru Usman Continues His Dominance Over the Welterweight Division

The 'Nigerian Nightmare' has defended his title four times and won 14 UFC fights in a row.

Sports Illustrated's Justin Barrasso is joined by UFC welterweight champion of the world, Kamaru 'The Nigerian Nightmare' Usman. The number two ranked pound for pound fighter in the world talks about his fights with Jorge Masvidal and Colby Covington, and the pressure he faces when he steps inside the Octagon to defend his throne.