UFC middleweight Gadzhi Omargadzhiev made quick work of opponent Jansey Silva on Season 5 of Dana White's Contender Series securing the win with the first ever kneebar submission in Contender Series history. Omargadzhiev faces Caio Borralho next in his Octagon debut at UFC Vegas 51 on Saturday. Subscribe to get all the latest UFC content: http://bit.ly/2uJRzRR Experience UFC live with UFC FIGHT PASS, the digital subscription service of the UFC. Visit https://ufcfightpass.com/ To order UFC Pay-Per-Views on ESPN+, visit https://bit.ly/2vNIBE8 (U.S. only) To order UFC Pay-Per-Views, visit http://welcome.ufcfightpass.com/#PPV (Non U.S.) Shop official UFC gear, visit https://ufcstore.com/ Shop official UFC Memorabilia, visit https://ufccollectibles.com/ Connect with UFC online and on Social: ?? Website: http://www.ufc.com ?? Twitter: http://www.twitter.com/ufc ?? Facebook: http://www.facebook.com/ufc ?? Instagram: http://www.instagram.com/ufc ?? Snapchat: UFC ?? Twitch: https://www.