Mark Zuckerberg watches as Yan Xiaonan’s submission defense shines in impressive win over Mackenzie Dern – Yahoo Sports

Yan Xiaonan moves to 16-3 and closer to a strawweight title shot after her win over Mackenzie Dern on Saturday. (Photo by Jeff Bottari/Zuffa LLC)
Mackenzie Dern is one of the most decorated jiu-jits… [read more]

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