UFC Fight Night 211 faceoff highlights video, photo gallery from Las Vegas

LAS VEGAS – All the pre-fight activities are in the books for UFC Fight Night 211 following Friday’s official weigh-ins and faceoffs. In the main event, Mackenzie Dern (12-2 MMA, 7-2 UFC) takes on Yan Xiaonan (15-3 MMA, 6-2 UFC) in a key women’s strawweight bout. In the welterweight co-feature, Randy Brown (15-4 MMA, 9-4 UFC) meets Francisco Trinaldo (28-8…