Every time I see these highlights, I'm skeptical. It's not that Dern doesn't look sharp... her technique is on point... but we've seen this story before.
A fighter who isn’t usually known for their striking can look like a world-beater on the pads, only to enter the Octagon and throw strikes like they learned from Ben Askren.
Mackenzie has clearly been putting in serious work on her stand-up, and that’s great to see.
The real test will be seeing if she can put it all together when the cage door closes on Saturday.