5 UFC fighters with the most victories before their first defeat

#3 Justin Gaethje

Gaethje doing battle with Eddie Alvarez

'The Highlight' assembled a perfect record of 18-0 before meeting the former lightweight champion, Eddie Alvarez. On route to 'The Underground King', Gaethje knocked off the likes of Melvin Guillard and Michael Johnson. Many fans were surprised that the streak went on for as long as it did, when you factor in his wild style in the Octagon.

Gaethje suffered a second straight defeat at the hands of the top contender, Dustin Poirier, but recently got back in the wins column after he knocked out James Vick last month.