Height: 5'6" (168cm)
Weight: 155 lbs
Fighting out of: Minneapolis, USA
Camp: Minnesota Martial Arts Academy
Sean Sherk (born August 5, 1973) is an American mixed martial artist currently fighting for the Ultimate Fighting Championship (UFC). Sherk has fought in both the UFC and Pride Fighting Championships, and is a one-time UFC Lightweight Champion.
Sherk began fighting MMA in 1999, where he originally fought at the welterweight weight-class. During his time as a welterweight, Sherk suffered two loses; one to Matt Hughes and one to Georges St. Pierre. In 2006, Sherk decided to drop down to the lightweight class of 155 lb. In his first fight as a lightweight, Sherk defeated Kenny Florian to become the first UFC Lightweight Champion in over four years.
After his first successful defense with the title, Sherk was stripped of the title after testing positive for steroids, an accusation he unsuccesfully fought against in a series of controversial hearings. Upon his return in May 2008, Sherk failed to win back the title from the champion, B.J. Penn.