Keys to a McGregor upset ...

Bully the Bully

Following the blueprint set by Marcos Maidana against Mayweather in 2014—never mind that it ultimately didn't work—McGregor should fight rough, wild and aggressive.

Fury Fists

Make no mistake: McGregor has serious punching power. He'll want to connect on a clean left hook, but that won't be easy against arguably the best defensive boxer in history.

Lucky Break

Mayweather's hands are known to be fragile; he's broken them in the ring before. If that happens again, and early, things could get more interesting.