a rematch
If by any chance Conor catches Floyd, the rematch happens in the octagon surely.
I predict a boxing clinic, not much in the way of any big punches landed from either guy but Floyd should take each round with minimal effort, I'm more interested to see Conors approach to it and if Conor can do 10 rounds of boxing (provided Floyd doesn't knock him out).
if conor wins, why would a rematch happen in an octagon? that doesn't make any sense.