Reigning ONE bantamweight MMA world champion Fabricio Andrade possesses one of the most complete and devastating striking arsenals across all of combat sports, and he's never failed to put it on display throughout his near-perfect tenure in the organization.The Brazilian superstar, nicknamed 'Wonder Boy', has put opponents to sleep with a variety of tools. Hooks to the body, straight and crosses to the jaw, and knees to the midsection – you name it, and Andrade has used every imaginable weapon in his skill set on his way to six highlight-reel finishes under the ONE spotlight.Recently, the world's largest martial arts organization posted Fabricio Andrade's knee to the body finish against Filipino striking specialist Jeremy Pacatiw on its official Instagram account (@onechampionship).Watch the clip posted by ONE Championship here: View this post on Instagram Instagram PostCombat sports fans flooded the comment section with praise for the Brazilian's nasty knees.Two-division ONE MMA world champion Anatoly Malykhin left three fire emojis, signalling his admiration for his Tiger Muay Thai teammate's ferocious finishing power.Another Instagrammer @orsikyle wrote:"Did he break his ribs? I swear I heard a crunch. Or was that added?"Another user, @matt.be.slidin, offered a more scientific take, suggesting that the Filipino may have suffered an injury:"The way his leg recoils off his body, that had to have broken a rib."@itslikejake1 echoed a similar sentiment, writing:"100% without a doubt broke a rib."@filam_boi had a similar opinion:"yeah he definitely broke a rib or two."Meanwhile, Instagram user @evil.kevinh commented:"A professional fighter crumbling into a corner like that you know that strike felt terrible."@bigstereotype shared his take, writing:"He went down like he'd been shot, that's some cracked ribs for sure."@hassan_fofana kept his comment short and sweet, saying:"Bye bye ribs."Instagram user @lieuriv had a punny take:"Sent that boy some knee-mail."Check out their comments and some others below:Screenshot from the original post [Screenshot from Instagram @onechampionship]Screenshot from the original post [Screenshot from Instagram @onechampionship]Screenshot from the original post. [Screenshot from Instagram @onechampionship]History suggests Fabricio Andrade could be on his way to another cracking finish at ONE Fight Night 38Fabricio Andrade has earned five highlight-reel finishes from six MMA triumphs inside the Circle with his insane finishing instincts, so it won't come as much of a surprise if he wraps things early in his next outing.The 28-year-old stars in the main event of ONE Fight Night 38 alongside Mongolian slugger Enkh-Orgil Baatarkhuu. That evening, live from the iconic Lumpinee Stadium in Bangkok, Thailand, the Brazilian puts his gold on the line.In his last title defense, the bantamweight MMA king needed only 42 seconds to finish 'Pretty Boy' Kwon Won Il in their rematch at ONE 170.Could Fabricio Andrade earn another quick night out in the office inside the Thai capital city on Friday, Dec. 5? Let us know below!Active Amazon Prime Video subscribers in the United States and Canada can catch all the action from ONE Fight Night 38 live in U.S. primetime for free.