You are silly if you think McGregor has any chance at Mayweather in a square ring go see the Gatti fight. Mayweather will play the cards cause that's how you win sometimes, like in that second fight between McGregor and Diaz..
Dude was RUNNING from Diaz, knowing that round 1 saved his ass at the judges (that and the promotional potential if you're cynical)
Next time Diaz needs to stay away from the chems before walking into the ring, he seemed to kind of wakeup after that ugly first round.
The MMA fighter that really impresses me is Demetrious Johnson, I'd love to see him and a "Floyd in his prime" in a boxing ring.