Mackenzie Dern reacts to championship win over Virna Jandiroba at UFC 321

UFC 321 Post Fight Press Conference: Mackenzie Dern Mackenzie Dern speaks on becoming the new UFC Strawweight Champion after defeating Virna Jandiroba at UFC 321 #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