MMA & Bruce Lee --- How would Bruce Lee do in the MMA?

Bruce Lee takes on the MMA.... This is a question I have often asked myself an have compared today's best MMA fighters to. Bruce Lee achieved amazing things in his short life and is an icon. I feel in his prime Bruce Lee would take on all takers no matter what size or weight class they were in. Bruce was fast, quick (there is a difference), strong for a small guy and in shape like no other I have ever seen. Who in todays MMA or UFC whatever you want to call it. Who would stand the best chance at beating Bruce Lee? Would Bruce Lee even stand a chance in today's fighting styles, size, and strength? I feel he would be unbeatable and thrive in this style of fighting and its formates and I also feel there would be some folks that would think twice about entering the sport and the ring. What are your thoughts? Just a little factoid for all of you that might not know Bruce Lee but only of him, Bruce Lee was so fast that they actually had to slow a film down so you could see his moves. That's the opposite of the norm.