If you've ever watched any of Chan's early MMA bouts then one thing was immediately clear, he was the kind of pugilist who moved forward no matter what was going on. Seriously, anything. 

You could punch and kick the guy in the face, hit him with your hardest shots, and for the most part, he would never falter. And even if he did manage to get knocked down he'd come right back up and ready to throw bombs at your face.

In fact, his scrap against Leonard Garcia, which was contested on March 26, 2011, was a ridiculously close affair that saw the two 145lb-ers smash each other in the face for three consecutive rounds and never showing any signs of quit. 

Even though this fight is nearly a decade old as of this writing, it's still a bout that MMA fans remember fondly.

Not for its technical prowess, but mainly because it looked like a scene out of a Rocky film: there was zero defense and just straight-up swinging for the fences in an attempt to knock each other out. Both men were beaten to a pulp, but they were both still standing at the end of it all.

Interestingly enough, shortly after that fight, Chan's MMA career was put on hold as he had to serve in the military, a mandatory rule in his native country of South Korea.

But he was clearly training the entire time and had one goal on his mind: become a better martial artist, and he did. 

While he relied on his iron chin and heavy hands for his first crop of fights, after he returned to the UFC he seemed to be a completely different fighter and one that fans were excited to see back inside the cage.