Ketlen Souza and Karine Silva squared off in a main card bout at UFC Vegas 74. The fight took a shocking turn that left the MMA community in disbelief.In the first round, Silva unleashed a right hand and promptly initiated a clinch, forcing Souza into the half-guard position. Silva maintained dominance and advanced to a front headlock position. At the one-minute mark, Silva continued to be the aggressor and delivered a few punches before executing a swift transition into a straight ankle lock.Ketlen Souza succumbed to the submission hold, leading to a quick tap out at UFC Vegas 74. Souza's loss was compounded by her knee popping that horrified the MMA community.Check out the video below:Shakiel Mahjouri@Shak_FuOof! Karine Silva pops Ketlen Souza's knee BADLY! That's 15 stoppages in 15 wins at #UFCVegas74265Oof! Karine Silva pops Ketlen Souza's knee BADLY! That's 15 stoppages in 15 wins at #UFCVegas74 https://t.co/ShlUf75PCLFight fans took to Twitter to react to Ketlen Souza losing the fight via submission (kneebar). One fan wrote:"Asked the restaurant to turn it to the card after the WCWS....they almost threw up watching this at the bar"Kyron Samuels@kyronsamuels@anotherFTBacct @Grabaka_Hitman asked the restaurant to turn it to the card after the WCWS....they almost threw up watching this at the bar 41@anotherFTBacct @Grabaka_Hitman asked the restaurant to turn it to the card after the WCWS....they almost threw up watching this at the bar 😭 https://t.co/AWtK57vX7jAnother fan wrote:"Yikes... That knee will never be the same. She might've just ended her career before it started."🏴‍☠️ 🦝 You Better Watch Out 🦝 🏴‍☠️@HouseofPain1776@MMAFighting @espnmma Yikes... That knee will never be the same. She might've just ended her career before it started.@MMAFighting @espnmma Yikes... That knee will never be the same. She might've just ended her career before it started.Yet another fan stated:"UFC debut and gets her knee snap in two and now is gonna be out a full year recovering damn"Limón@LimonNarco@ufc @KillerKarine UFC debut and gets her knee snap in two and now is gonna be out a full year recovering damn 6@ufc @KillerKarine UFC debut and gets her knee snap in two and now is gonna be out a full year recovering damn 😢Check out some of the reactions below:Brandon Vise@True_2_thebigbl@anotherFTBacct @Grabaka_Hitman That's a surgery.@anotherFTBacct @Grabaka_Hitman That's a surgery.Kronk@Kronk_NK@anotherFTBacct And that is why it's not allowed in tournaments because it's so fast and so easy when you got a competent grappler. Feel for Souza because that's gonna be a long and painful road to recovery@anotherFTBacct And that is why it's not allowed in tournaments because it's so fast and so easy when you got a competent grappler. Feel for Souza because that's gonna be a long and painful road to recoveryT. Reynolds@tampabless@anotherFTBacct @Grabaka_Hitman Brutal.@anotherFTBacct @Grabaka_Hitman Brutal.slime@yuhngslime@SpinninBackfist God dammit14@SpinninBackfist God dammit https://t.co/ULxANaCJrxKeith Mikell@mikells43@SpinninBackfist LCL gone. Why do they let this happen?1@SpinninBackfist LCL gone. Why do they let this happen?ℂ𝕒𝕟𝕒𝕒𝕟༒@diorbanss@SpinninBackfist That sucks man, killer submission tho3@SpinninBackfist That sucks man, killer submission thoDom Cours@dom_cours@SpinninBackfist@SpinninBackfist https://t.co/tyip8686ACBigJonesEnergy@Beltricus@ufc @KillerKarine UFC Can you not pit undefeated prospects against each other? Now the exciting striker who probably would've given you some more highlights is sidelined for 9+ months to rehab and heal that knee up, and potentially never come back4@ufc @KillerKarine UFC Can you not pit undefeated prospects against each other? Now the exciting striker who probably would've given you some more highlights is sidelined for 9+ months to rehab and heal that knee up, and potentially never come backVidal@vidal_Cruz99@ufc @KillerKarine She’s gunna be out for a lonnnnnggggg time the knee will never ever be the same !!1@ufc @KillerKarine She’s gunna be out for a lonnnnnggggg time the knee will never ever be the same !!MMA Ruminations@mma_ruminations@ufc @KillerKarine When the outside leg crosses the opponents body like that, it’s a knee reap and will attack the knee instead of the ankle2@ufc @KillerKarine When the outside leg crosses the opponents body like that, it’s a knee reap and will attack the knee instead of the ankleMr. Rager@MrRagerx@ufc @KillerKarine getting your knee destroyed for $10k is just sad@ufc @KillerKarine getting your knee destroyed for $10k is just sadKetlen Souza knee pop: Karine Silva details the finish in the post-fight octagon interviewIn October 2021, Karine Silva impressed on 'Dana White's Contender Series' by submitting Yan Qihui in the second round, securing the coveted UFC contract. Silva made her promotional debut at UFC Fight Night: Volkov vs. Rozenstruik eight months later against Poliana Botelho.With seven UFC bouts under her belt prior to that bout, Botelho was a formidable contender in the UFC. However, it took Silva only one round to secure a submission victory over her fellow Brazilian.At the recently concluded UFC Vegas 74, Karine Silva secured yet another first-round submission victory, this time over Ketlen Souza. With the win, Silva now holds an impressive 100% finish rate in her 16 professional MMA victories.Detailing the finish and addressing Ketlen Souza's knee pop in the post-fight octagon interview, Silva stated:"It's a position we train a lot. I usually don't straight up and go to the side looking for a heel hook.... All of a sudden when I saw it we were straight down, I felt a pop, I felt something weird and I let go."Check out Karine Silva's post-fight octagon interview below: