Strawweight contenders Mackenzie Dern and Xiaonan Yan came face-to-face at the conclusion of the UFC Vegas 61 weigh ins on Friday, just one day in front of their 115-pound main event on Sat. night (Oct. 1, 2022) inside APEX in Las Vegas, Nevada. Check out their staredown video embedded above. Dern (12-2) is ranked No. 5 in the strawweight division and a “W” over Yan will mark her second straight and her sixth win in her last seven attempts. More importantly, the grappling ace will join a very short list of eligible strawweight title contenders. But only in victory. Yan…