Sean O'Malley's first UFC fight came in December of 2017, as an undefeated prospect, after getting a viral KO on Season 1 of Dana White's Contender Series. By 2023, O'Malley's ascension came to fruition as he became the undisputed Bantamweight champion with a knockout victory over Aljamain Sterling. Subscribe to get all the latest UFC content: https://ufc.ac/3u8FIJp 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://ufc.ac/3NKBvmx (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/ 👉 Shop official UFC VIP Live Event Experiences, visit https://ufc.ac/3Oz2gLH Connect with UFC online and on Social: 🔴 Website: https://www.ufc.com/ 🔵 Twitter: https://www.twitter.com/ufc 🔵 Facebook: https://www.facebook.com/ufc 🔴 Instagram: https://www.instagram.com/ufc 🟡 Snapchat: https://www.snapchat.com/add/ufc 🟣 Twitch: https://www.twitch.tv/ufc Connect with UFC FIGHT PASS on Social: 🔵 Twitter: https://www.twitter.com/ufcfightpass 🔵 Facebook: https://www.facebook.com/ufcfightpass 🔴 Instagram: https://www.instagram.com/ufcfightpass #UFC #ufc299 #seanomalley