Here is Ralek Gracie fighting Katsuyori Shibata in K-1 Hero's from 6/15/08. Ralek, is the son of Rorian Gracie of the Jiu-Jitsu clan, who is largely considered as founding the UFC.
Ralek will be fighting Kazushi Sakuraba at Dream 14 on May 29, 2010. Sakuraba, who carries the moniker "Gracie Hunter" will be looking for another win over a Gracie. He has defeated Royler, Royce, Renzo and Ryan Gracie.