Who is going to win?: Floyd Mayweather vs Conor McGregor?

Biggest fight of the year. MMA's megastar vs the undefeated boxing legend, in a Boxing ring, under boxing rules.

Conor has a heavy youth advantage. A slight size advantage. Mayweather has so much boxing experience though and is a pretty big favorite according to betting odds in a boxing ring. He's old though, does he have what it takes if he takes even one clean punch from Conor McGregor?