Yan showed improved grappling skills in fending off submission ace Dern over the course of five rounds in Las Vegas.
UFC Fight Night 211: China's Yan Xiaonan says Mackenzie Dern holds
Yan Xiaonan vs. Mackenzie Dern full fight video highlights - MMA
ufc-fight-night-211-breakdown-mackenzie dern-yan-xiaonan
UFC Fight Night 223: Mackenzie Dern vs. Angela Hill Fight Card
UFC Fight Night 211 predictions: Four unanimous picks in Las Vegas
Mackenzie Dern vs. Yan Xiaonan strawweight clash to headline Oct
UFC Fight Night 211 results: Yan Xiaonan wins main event decision
UFC Fight Night 211: Dern vs. Yan' live results - MMA Underground
UFC Fight Night 211: China's Yan Xiaonan says Mackenzie Dern holds
Yan Xiaonan faces Mackenzie Dern at UFC Fight Night 211