This man helped pave the path of today's World Jiu-Jitsu Champions. Royler Gracie, whose technique is one of the finest expressions of the art, is a fierce competitor against opponents of all sizes. Like his father and brothers, he's a pioneer and one of the reasons we're able to train in the art today.
Here are a couple of videos I found on YouTube from back in 2003 -- part one then part two follows:
(check out the takedown at 1:58)