Mayweather will never accept a MMA anything fight. Mcgregor is much bigger than him and everytime they tied up, it was obvious that he is much stronger, too. Mcgregor could have taken him down anytime he wanted to. There was once or twice I thought he was going to do just that.I didn't even watch it but I suspect my prediction is true.
Maywheather made it look like a good fight, but eventually took him out.
Now since it looked close for a while the McGregger fans will push for a remix with MMA "lite" rules. That one McGregor will win. Leading to the eventual third fight.