China not buying 'superfight' hype

It's not the first, and it won't be the worst.

Saturday's "superfight" in Las Vegas between Floyd Mayweather and Conor McGregor isn't the first time a boxing champion has squared off against the master of another combat sport - but it's easily the richest.

With minimum purse guarantees on top of a 60-40 split of worldwide pay-per-view revenue, Mayweather will pocket around $225 million while mixed martial arts champ McGregor will take home at least $100 million.