Tags: Martial Artist.
Sean Keith Sherk (born August 5 1973) is a retired American mixed martial artist and former UFC Lightweight Champion. Sherk competed in the Ultimate Fighting Championship where he is the first of only two who fought for both the UFC Lightweight Championship and UFC Welterweight Championship (the other being B.J. Penn). He was the second UFC Lightweight Champion in the organization’s history after Jens Pulver vacated his title 5 years earlier.