UFC 321 Pre Fight Interview: Mackenzie Dern Mackenzie Dern speaks on his fight with Virna Jandiroba at UFC 321. Speaks on jui jitsu accomplishments and believes the star will align and now is time. #UFC321 #MackenzieDern #VirnaJandiroba Twitter: http://www.twitter.com/MMACrazy Instagram: http://www.Instagram.com/MMA_Crazy Click on the link below to subscribe http://www.youtube.com/user/mmacrazytv?sub_confirmation=1