Mackenzie Dern says she came into UFC 224’s fight week a little heavier than she would have liked.

Mackenzie Dern revealed to the media that she was told she didn’t need to come back to her home gym in Arizona.

Mackenzie Dern heard the hype, and knew the attention was on her, but she felt natural.

Mackenzie Dern kicked off her UFC career with a win in Las Vegas.