We take a look at some of the most memorable moments from the second half of 2021. From the trilogy fight between Dustin Poirier and Conor McGregor to one of the biggest upsets in UFC title fight history to end the year. 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/ 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.twitch.tv/ufc Connect with UFC FIGHT PASS on Social: 🔵 Twitter: http://www.twitter.com/ufcfightpass 🔵 Facebook: http://www.facebook.com/ufcfightpass 🔴 Instagram: http://www.instagram.com/ufcfightpass #UFC