#1 Dustin Poirier vs. Justin Gaethje

A wild fight between two bona fide warriors who always bring it inside the Octagon – Dustin Poirier's clash with Justin Gaethje in April of this year, truly is one of the most violent fights of 2018.
What's interesting is that Poirier had a tremendous amount of success with his boxing, whereas Gaethje succeeded in severely damaging the former's leg with a disciplined volley of kicks. I truly believe that had Gaethje utilized better footwork and gotten out of harm's way, instead of covering up with a high guard and absorbing Poirier's punches; he'd have likely stopped Poirier with a leg kick TKO win.
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Nevertheless, Poirier being the true veteran that he is, took advantage of his foe's footwork, or lack thereof, and defeated Gaethje with a seemingly never-ending volley of punches in Round 4.
Which other fights do you think were the craziest ones in 2018? Sound off in the comments!