FMJ's style is impetuous, FMJ's defense is impregnable

Impetuous: 1.acting or done quickly and without thought or care. 2. moving forcefully or rapidly.

Floyd is the opposite of that. He's very cautious and calculating as opposed to Mike Tyson who picks Manny to win.

"You can't disagree with that if you are a true boxing fan." - FlashyKO

The no true scotsman fallacy is a way of reinterpreting evidence in order to prevent the refutation of one’s position. Proposed counter-examples to a theory are dismissed as irrelevant solely because they are counter-examples, but purportedly because they are not what the theory is about.
http://www.logicalfallacies.info/presumption/no-true-scotsman/

Consequently, you can disagree if you are a boxing fan, but not if you are a Mayweather fanatic. Not all boxing fans are Mayweather fanatics, therefore OPs assertion is false.