Mackenzie Dern and Yan Xiaonan had their first and only faceoff ahead of Saturday's UFC Fight Night 211 headliner in Las Vegas. Visit us on the web: https://mmajunkie.usatoday.com Part of the USA TODAY network: http://www.usatoday.com Be sure to subscribe to our channel to get the latest MMA news and videos. Connect with MMA Junkie on social media: Facebook: https://facebook.com/officialmmajunkie Twitter: https://twitter.com/MMAjunkie Instagram: https://instagram.com/mmajunkie TikTok: https://www.tiktok.com/@mmajunkieofficial #UFCVegas61 #MackenzieDern #YanXiaonan