UFC Vegas 61 Preview: Dern vs. Yan Share September 23, 2022 Dm4r Sport News Last Updated on 24 Sep 2022 12:47 am (UK Time) MacKenzie Dern is a top-five competitor in her weight division, who has also won several gold medals at international Jiu-jitsu competitions. Yet for all of her accomplishments, she has never … UFC Vegas 61 Preview: Dern vs. Yan Read More » Source : UFC Vegas 61 Preview: Dern vs. Yan