Ken Shamrock - Patrick Smith
As a kid, I knew how to box, avoid getting kick, what a kimura was (but I didn't know what it was called), the general concept of two arms on one, a RNC,basic judo throw/trips and the importance of stamina. Most of these things could be found in Marine Hand-to-Hand Combat manuals. When Shamrock took Smith down without Smith landing anything, Shamrock landed in the Smith's guard (yes, Smith had a guard in UFC 1. Smith's guard was interesting, even though he couldn't do anything from it, because it showed that a guy with Shamrock's power could be locked down BUT the real eye-opener was the lock that blew-out Smith's knee. What was that?
Obviously, you had Royce in UFC 1 too. Anyone who knew about Olympic wrestling had to be thinking that Royce wouldn't hold-up in the long term. Within a year or so it seemed obvious that once Olympic wrestlers entered the UFC, and had some training defending triangles and arm bars that Royce was going to be lose on a regular basis.