01 Jan UFC Vegas 39 weigh-in video
<figure> <img alt="Mackenzie Dern" src="https://cdn.vox-cdn.com/thumbor/wosnmx0-pLB-hFq3BBlADEYkMIc=/12x0:4581x3046/1310x873/cdn.vox-cdn.com/uploads/chorus_image/image/69968024/FN68_WeighIn_2021_04_09_CU_0070_20210409103847524.0.jpg"> <figcaption>Mackenzie Dern will step on the scale at UFC Vegas 39 weigh-ins Friday. | Zuffa LLC</figcaption> </figure> <p>At the <a href="https://www.mmafighting.com/fight-card/1252/ufc-vegas-39-dern-vs-rodriguez">UFC Vegas 39</a> weigh-ins,...