Michael Chiesa thinks the number one GOAT spot belongs to Demetrious Johnson On Twitter, MMA journalist Sean Sheehan posted a clip of “Mighty Mouse” during some of his best Octagon moments and wrote, “Just take a moment to enjoy the most skilful fighter in human history.” Chiesa was quick to retweet the video and declare … Continue reading Michael Chiesa dubs Demetrious Johnson as the undisputed GOAT of MMA